Pick window corners from Appearance > Window Corners (#14990)

* Expect Appearance before Toggle under Trigger

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Read the default workspace layout once for all the menu rows that ask

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Pick window corners from Appearance > Window Corners

Theme Corners leaves them to each theme. Sharp and Rounded override every
theme through a Hyprland toggle, with Rounded using Solitude's corners.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Keep the corner choice when saving a new one fails, and test the load order

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

test/shell.d/menu-test.sh

@@ -194,8 +194,8 @@ assert(
 const triggerItems = defaultItems.filter(item => item.parent === 'trigger')
 assertEqual(
   triggerItems[0].id,
-  'trigger.toggle',
-  'menu lists Toggle first under Trigger'
+  'trigger.appearance',
+  'menu lists Appearance first under Trigger'
 )
 assertEqual(
   defaultById['trigger.emoji'].action,
@@ -412,9 +412,14 @@ assertDeepEqual(
   ['Top Bar', 'Bottom Bar', 'Left Bar', 'Right Bar'],
   'menu names each position after the bar'
 )
+assertDeepEqual(
+  defaultItems.filter(item => item.parent === 'trigger.appearance.window-corners').map(item => [item.label, item.action]),
+  [['Theme Corners', 'omarchy-hyprland-corners theme'], ['Sharp Corners', 'omarchy-hyprland-corners sharp'], ['Rounded Corners', 'omarchy-hyprland-corners rounded']],
+  'menu picks window corners from Appearance > Window Corners'
+)
 const triggerIds = triggerItems.map(item => item.id)
-const appearanceLabels = ['Animations', 'Menu Bar', 'Window Gaps', '1-Window Ratio', 'Workspace Layout', 'Herdr Theme Sync']
-assertEqual(triggerIds.indexOf('trigger.appearance'), triggerIds.indexOf('trigger.toggle') + 1, 'menu places Appearance right after Toggle')
+const appearanceLabels = ['Animations', 'Menu Bar', 'Window Gaps', 'Window Corners', '1-Window Ratio', 'Workspace Layout', 'Herdr Theme Sync']
+assertEqual(triggerIds.indexOf('trigger.toggle'), triggerIds.indexOf('trigger.appearance') + 1, 'menu places Toggle right after Appearance')
 assertDeepEqual(
   defaultItems.filter(item => item.parent === 'trigger.appearance').map(item => item.label),
   appearanceLabels,