* feat: refactor space icon picker
* chore: optimize the _loadIconGroups function
* feat: refactor emoji picker
* feat: integrate icon picker into flowy_icon_emoji_picker
* feat: support searching icon
* feat: support displaying new icons
* fix: flutter analyze
* chore: join lines
* feat: support space icon in view title
* feat: support customzing icon when creating space or managing space
* feat: customize the emoji picker and icon picker padding
* feat: shuffle icon
* fix: expand popup menu font size
* fix: flutter integration test
