fix: some shortcut keys with shift are invalid #629

src/editor/core/shortcut/Shortcut.ts

@@ -67,7 +67,7 @@ export class Shortcut {
             evt.metaKey === !!shortCut.meta) &&
         evt.shiftKey === !!shortCut.shift &&
         evt.altKey === !!shortCut.alt &&
-        evt.key === shortCut.key
+        evt.key.toLowerCase() === shortCut.key.toLowerCase()
       ) {
         if (!shortCut.disable) {
           shortCut?.callback?.(this.command)

src/editor/core/shortcut/keys/richtextKeys.ts

@@ -5,7 +5,7 @@ import { isApple } from '../../../utils/ua'
 
 export const richtextKeys: IRegisterShortcut[] = [
   {
-    key: KeyMap.X_UPPERCASE,
+    key: KeyMap.X,
     ctrl: true,
     shift: true,
     callback: (command: Command) => {