Fix slash newline (#10305)

* Fix slash menu Shift+Enter newline

* fix: enable Shift+Enter newline in rich editor with slash commands

Fixed an issue where users couldn't create new lines using Shift+Enter when
slash command menu (/foo) was active. The problem was caused by globa
keyboard event handlers intercepting all Enter key variants.

Changes:
 - Allow Shift+Enter to pass through QuickPanel event handling
 - Add Shift+Enter detection in CommandListPopover to return false
 - Implement fallback Shift+Enter handling in command suggestion render
 - Remove unused import in AppUpdater.ts
 - Convert Chinese comments to English in QuickPanel
- Add test coverage for command suggestion functionality

---------

Co-authored-by: Zhaokun Zhang <zhaokunzhang@Zhaokuns-Air.lan>

src/renderer/src/components/QuickPanel/view.tsx

@@ -457,7 +457,13 @@ export const QuickPanelView: React.FC<Props> = ({ setInputText }) => {
 
           // 面板可见且未折叠时：拦截所有 Enter 变体；
           // 纯 Enter 选择项，带修饰键仅拦截不处理
-          if (e.ctrlKey || e.metaKey || e.altKey || e.shiftKey) {
+          if (e.shiftKey && !e.ctrlKey && !e.metaKey && !e.altKey) {
+            // Don't prevent default or stop propagation - let it create a newline
+            setIsMouseOver(false)
+            break
+          }
+
+          if (e.ctrlKey || e.metaKey || e.altKey) {
             e.preventDefault()
             e.stopPropagation()
             setIsMouseOver(false)

src/renderer/src/components/RichEditor/CommandListPopover.tsx

@@ -87,6 +87,9 @@ const CommandListPopover = ({
           return true
 
         case 'Enter':
+          if (event.shiftKey) {
+            return false
+          }
           event.preventDefault()
           if (items[internalSelectedIndex]) {
             selectItem(internalSelectedIndex)

src/renderer/src/components/RichEditor/__tests__/commandSuggestion.test.ts

@@ -0,0 +1,17 @@
+import { describe, expect, it } from 'vitest'
+
+import { commandSuggestion } from '../command'
+
+describe('commandSuggestion render', () => {
+  it('has render function', () => {
+    expect(commandSuggestion.render).toBeDefined()
+    expect(typeof commandSuggestion.render).toBe('function')
+  })
+
+  it('render function returns object with onKeyDown', () => {
+    const renderResult = commandSuggestion.render?.()
+    expect(renderResult).toBeDefined()
+    expect(renderResult?.onKeyDown).toBeDefined()
+    expect(typeof renderResult?.onKeyDown).toBe('function')
+  })
+})

src/renderer/src/components/RichEditor/command.ts

@@ -628,13 +628,34 @@ export const commandSuggestion: Omit<SuggestionOptions<Command, MentionNodeAttrs
       },
 
       onKeyDown: (props) => {
+        // Let CommandListPopover handle events first
+        const popoverHandled = component.ref?.onKeyDown?.(props.event)
+        if (popoverHandled) {
+          return true
+        }
+
+        // Handle Shift+Enter for newline when popover doesn't handle it
+        if (props.event.key === 'Enter' && props.event.shiftKey) {
+          props.event.preventDefault()
+          // Close the suggestion menu
+          if (cleanup) cleanup()
+          component.destroy()
+          // Use the view from SuggestionKeyDownProps to insert newline
+          const { view } = props
+          const { state, dispatch } = view
+          const { tr } = state
+          tr.insertText('\n')
+          dispatch(tr)
+          return true
+        }
+
         if (props.event.key === 'Escape') {
           if (cleanup) cleanup()
           component.destroy()
           return true
         }
 
-        return component.ref?.onKeyDown(props.event)
+        return false
       },
 
       onExit: () => {