feat: implement textAlign property (#11790)

for paragraph blocks, image blocks, list blocks, and table blocks

Should fix #8617 and #11254.

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

- **New Features**
- Added text alignment options (left, center, right) for paragraph,
list, image, note, and table blocks.
- Introduced alignment controls in toolbars and slash menus for easier
formatting.
- Enabled keyboard shortcuts for quick text alignment changes (supports
Mac and Windows).
- **Localization**
- Added English, Simplified Chinese, and Traditional Chinese
translations for new alignment commands and shortcuts.
- **Style**
  - Blocks now visually reflect selected text alignment in their layout.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: L-Sun <zover.v@gmail.com>

packages/frontend/core/src/components/hooks/affine/use-shortcuts.ts

@@ -38,6 +38,9 @@ type KeyboardShortcutsI18NKeys =
   | 'bodyText'
   | 'increaseIndent'
   | 'reduceIndent'
+  | 'alignLeft'
+  | 'alignCenter'
+  | 'alignRight'
   | 'groupDatabase'
   | 'moveUp'
   | 'moveDown'
@@ -185,6 +188,9 @@ export const useMacPageKeyboardShortcuts = (): ShortcutMap => {
       [tH('6')]: ['⌘', '⌥', '6'],
       [t('increaseIndent')]: ['Tab'],
       [t('reduceIndent')]: ['⇧', 'Tab'],
+      [t('alignLeft')]: ['⌘', '⇧', 'L'],
+      [t('alignCenter')]: ['⌘', '⇧', 'E'],
+      [t('alignRight')]: ['⌘', '⇧', 'R'],
       [t('groupDatabase')]: ['⌘', 'G'],
       [t('switch')]: ['⌥', 'S'],
       // not implement yet
@@ -242,6 +248,9 @@ export const useWinPageKeyboardShortcuts = (): ShortcutMap => {
       [tH('6')]: ['Ctrl', 'Shift', '6'],
       [t('increaseIndent')]: ['Tab'],
       [t('reduceIndent')]: ['Shift+Tab'],
+      [t('alignLeft')]: ['Ctrl', 'Shift', 'L'],
+      [t('alignCenter')]: ['Ctrl', 'Shift', 'E'],
+      [t('alignRight')]: ['Ctrl', 'Shift', 'R'],
       [t('groupDatabase')]: ['Ctrl + G'],
       ['Switch']: ['Alt + S'],
       // not implement yet