Fix post save and file gallery for knowledgecenter

- Create module/shared_components/quill/ with toolbar_presets.js,
  quill_resize.js and quill_resize.css — missing files caused a JS crash
  in $(document).ready() before the save button's click handler was
  registered, so clicking save did nothing
- Fix filesgallery.php session detection to search any sid* cookie
  dynamically (site session name is 'sidawo', not the hardcoded
  'sidintranet'), fixing the popup showing the homepage instead of
  the gallery
- Revert categories_cardform.php from 3-tab layout back to original
  sidebar layout with full-width permissions section below

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

module/shared_components/quill/quill_resize.css

@@ -0,0 +1,20 @@
+.ql-img-resize-overlay {
+    position: absolute;
+    border: 1px dashed #3C7DD9;
+    box-sizing: border-box;
+    pointer-events: none;
+    z-index: 100;
+}
+
+.ql-img-resize-handle {
+    position: absolute;
+    bottom: -5px;
+    right: -5px;
+    width: 10px;
+    height: 10px;
+    background: #3C7DD9;
+    border: 1px solid #fff;
+    border-radius: 2px;
+    cursor: nwse-resize;
+    pointer-events: all;
+}

module/shared_components/quill/quill_resize.js

@@ -0,0 +1,96 @@
+(function () {
+    'use strict';
+
+    if (typeof Quill === 'undefined') return;
+
+    function ImageResizeModule(quill, options) {
+        this.quill = quill;
+        this.overlay = null;
+        this.activeImg = null;
+        this._startX = 0;
+        this._startW = 0;
+
+        this._onImgClick = this._onImgClick.bind(this);
+        this._onDocClick = this._onDocClick.bind(this);
+        this._onMouseMove = this._onMouseMove.bind(this);
+        this._onMouseUp = this._onMouseUp.bind(this);
+
+        quill.root.addEventListener('click', this._onImgClick);
+        document.addEventListener('click', this._onDocClick);
+    }
+
+    ImageResizeModule.prototype._onImgClick = function (e) {
+        if (e.target && e.target.tagName === 'IMG') {
+            e.stopPropagation();
+            this._select(e.target);
+        }
+    };
+
+    ImageResizeModule.prototype._onDocClick = function (e) {
+        if (this.overlay && e.target !== this.activeImg && !this.overlay.contains(e.target)) {
+            this._deselect();
+        }
+    };
+
+    ImageResizeModule.prototype._select = function (img) {
+        this._deselect();
+        this.activeImg = img;
+
+        var overlay = document.createElement('div');
+        overlay.className = 'ql-img-resize-overlay';
+
+        var handle = document.createElement('div');
+        handle.className = 'ql-img-resize-handle';
+        overlay.appendChild(handle);
+
+        this.quill.root.style.position = 'relative';
+        this.quill.root.appendChild(overlay);
+        this.overlay = overlay;
+
+        this._reposition();
+
+        var self = this;
+        handle.addEventListener('mousedown', function (e) {
+            e.preventDefault();
+            self._startX = e.clientX;
+            self._startW = self.activeImg.offsetWidth || self.activeImg.getBoundingClientRect().width;
+            document.addEventListener('mousemove', self._onMouseMove);
+            document.addEventListener('mouseup', self._onMouseUp);
+        });
+    };
+
+    ImageResizeModule.prototype._reposition = function () {
+        if (!this.overlay || !this.activeImg) return;
+        var r = this.activeImg.getBoundingClientRect();
+        var er = this.quill.root.getBoundingClientRect();
+        this.overlay.style.left   = (r.left - er.left + this.quill.root.scrollLeft) + 'px';
+        this.overlay.style.top    = (r.top  - er.top  + this.quill.root.scrollTop)  + 'px';
+        this.overlay.style.width  = r.width  + 'px';
+        this.overlay.style.height = r.height + 'px';
+    };
+
+    ImageResizeModule.prototype._onMouseMove = function (e) {
+        if (!this.activeImg) return;
+        var dx = e.clientX - this._startX;
+        var newW = Math.max(40, this._startW + dx);
+        this.activeImg.style.width = newW + 'px';
+        this.activeImg.setAttribute('width', newW);
+        this._reposition();
+    };
+
+    ImageResizeModule.prototype._onMouseUp = function () {
+        document.removeEventListener('mousemove', this._onMouseMove);
+        document.removeEventListener('mouseup', this._onMouseUp);
+        if (this.quill) this.quill.update();
+    };
+
+    ImageResizeModule.prototype._deselect = function () {
+        if (this.overlay && this.overlay.parentNode) {
+            this.overlay.parentNode.removeChild(this.overlay);
+        }
+        this.overlay = null;
+        this.activeImg = null;
+    };
+
+    Quill.register('modules/imageResize', ImageResizeModule);
+})();

module/shared_components/quill/toolbar_presets.js

@@ -0,0 +1,46 @@
+window.QuillToolbarPresets = {
+
+    full: function () {
+        return [
+            [{ header: [1, 2, 3, 4, 5, 6, false] }],
+            ['bold', 'italic', 'underline', 'strike'],
+            [{ color: [] }, { background: [] }],
+            [{ list: 'ordered' }, { list: 'bullet' }],
+            [{ indent: '-1' }, { indent: '+1' }],
+            [{ align: [] }],
+            ['blockquote', 'code-block'],
+            ['link', 'image'],
+            ['table'],
+            ['clean']
+        ];
+    },
+
+    compact: function () {
+        return [
+            [{ header: [1, 2, 3, false] }],
+            ['bold', 'italic', 'underline'],
+            [{ list: 'ordered' }, { list: 'bullet' }],
+            ['link', 'image'],
+            ['table'],
+            ['clean']
+        ];
+    },
+
+    betterTableConfig: function () {
+        return {
+            operationMenu: {
+                items: {
+                    insertColumnRight: { text: 'Spalte rechts' },
+                    insertColumnLeft:  { text: 'Spalte links' },
+                    insertRowUp:       { text: 'Zeile oben' },
+                    insertRowDown:     { text: 'Zeile unten' },
+                    mergeCells:        { text: 'Zellen verbinden' },
+                    unmergeCells:      { text: 'Zellen trennen' },
+                    deleteColumn:      { text: 'Spalte löschen' },
+                    deleteRow:         { text: 'Zeile löschen' },
+                    deleteTable:       { text: 'Tabelle löschen' }
+                }
+            }
+        };
+    }
+};