Tweaks to clarify tooltips from tool dropdown menus (#5123)

* Separate content from ToolbarItemTooltip, make simple and "rich" versions

* Add support for dropdown-arrow-only tooltip

* Add toolbar-wide hover timeouts and clears to switch between simple and rich tooltips

* Fix the dropdown arrow button hover styling now that they're separate

* Add missing doc links to rich toolbar tooltips

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-ubuntu-8-cores)

* Re-run CI after snapshots

* fix codespell

* fmt

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

src/lib/toolbar.ts

@@ -280,7 +280,12 @@ export const toolbarConfig: Record<ToolbarModeName, ToolbarMode> = {
           status: 'available',
           title: 'Offset plane',
           description: 'Create a plane parallel to an existing plane.',
-          links: [],
+          links: [
+            {
+              label: 'KCL docs',
+              url: 'https://zoo.dev/docs/kcl/offsetPlane',
+            },
+          ],
         },
         {
           id: 'plane-points',
@@ -305,7 +310,12 @@ export const toolbarConfig: Record<ToolbarModeName, ToolbarMode> = {
           status: 'available',
           title: 'Text-to-CAD',
           description: 'Generate geometry from a text prompt.',
-          links: [],
+          links: [
+            {
+              label: 'API docs',
+              url: 'https://zoo.dev/docs/api/ml/generate-a-cad-model-from-text',
+            },
+          ],
         },
         {
           id: 'prompt-to-edit',