feat: Integrate Lexical editor for custom fields in cuesheet

- Added lexical and @lexical/react dependencies.
- Created LexicalEditorCell component to provide an on-click editable rich text field.
- Modified MakeCustomField in cuesheetColsFactory to use LexicalEditorCell for string-type custom fields.
- Added Playwright tests for the new Lexical editor functionality in the cuesheet.

Note: Playwright tests could not be fully run due to persistent webServer timeouts, but test code is included.

apps/client/package.json

@@ -34,7 +34,9 @@
     "react-router-dom": "^6.3.0",
     "react-simple-code-editor": "^0.14.1",
     "web-vitals": "^3.1.1",
-    "zustand": "^5.0.3"
+    "zustand": "^5.0.3",
+    "lexical": "^0.17.0",
+    "@lexical/react": "^0.17.0"
   },
   "scripts": {
     "addversion": "node -p \"'export const ONTIME_VERSION = ' + JSON.stringify(require('../../package.json').version) + ';'\" > src/ONTIME_VERSION.js",