fix(editor): editor behavior and styles (#14498)

fix #14269 
fix #13920
fix #13977
fix #13953
fix #13895
fix #13905
fix #14136
fix #14357
fix #14491

#### PR Dependency Tree


* **PR #14498** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Bug Fixes**
  * Callout and toolbar defaults now reliably show grey backgrounds
  * Keyboard shortcuts behave better across layouts and non-ASCII input
  * Deleted workspaces no longer appear in local listings

* **New Features**
  * Cell editing now respects pre-entry validation hooks
* Scrollbars use themeable variables and include Chromium compatibility
fixes

* **Style**
  * Minor UI color adjustment for hidden properties

* **Tests**
  * Added unit tests for table column handling and keymap behavior
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/core/src/components/explorer/display-menu/properties.css.ts

@@ -25,7 +25,7 @@ export const property = style({
   selectors: {
     '&[data-show="false"]': {
       backgroundColor: cssVarV2.button.emptyIconBackground,
-      color: cssVarV2.icon.disable,
+      color: cssVarV2.text.secondary,
     },
   },
 });