fix: make commit sync use safe sync flow

Rename commit push action to Commit & sync
Use fetch and rebase before pushing committed changes
Keep sync result toasts consistent

packages/ui/src/lib/i18n/messages/en.ts

@@ -424,9 +424,9 @@ export const dict = {
   'gitView.commit.generate': 'Generate',
   'gitView.commit.generateAria': 'Generate commit message',
   'gitView.commit.messagePlaceholder': 'Commit message',
-  'gitView.commit.push': 'Push',
-  'gitView.commit.pushAria': 'Push',
-  'gitView.commit.pushing': 'Pushing...',
+  'gitView.commit.push': 'Commit & sync',
+  'gitView.commit.pushAria': 'Commit and sync',
+  'gitView.commit.pushing': 'Syncing...',
   'gitView.commit.selectFilesHint': 'Select files in Changes to enable commit.',
   'gitView.commit.title': 'Commit',
   'gitView.common.cancel': 'Cancel',