fix: prevent shortcut editor from creating override when unchanged

  Compare edited key against default before saving. Skip writing to
  commandShortcuts when the value matches the preset, avoiding the
  false "modified" indicator (reset icon) on unchanged shortcuts.

Author: SaKaNa-Y

packages/core/src/client/webcomponents/components/views-builtin/SettingsShortcuts.vue

@@ -58,6 +58,18 @@ function isOverridden(id: string): boolean {
   return shortcutOverrides.value[id] !== undefined
 }
 
+function getDefaultKey(id: string): string | undefined {
+  for (const cmd of commandsCtx.commands) {
+    if (cmd.id === id)
+      return cmd.keybindings?.[0]?.key
+    if (cmd.children) {
+      const child = cmd.children.find(c => c.id === id)
+      if (child)
+        return child.keybindings?.[0]?.key
+    }
+  }
+}
+
 function clearShortcut(commandId: string) {
   commandsCtx.settings.mutate((state) => {
     state.commandShortcuts[commandId] = []
@@ -187,9 +199,19 @@ function onEditorKeyDown(e: KeyboardEvent) {
 function saveEditor() {
   if (!editorCommandId.value || !editorCanSave.value)
     return
-  commandsCtx.settings.mutate((state) => {
-    state.commandShortcuts[editorCommandId.value!] = [{ key: editorComposedKey.value }]
-  })
+  const defaultKey = getDefaultKey(editorCommandId.value)
+  if (editorComposedKey.value === defaultKey) {
+    if (isOverridden(editorCommandId.value)) {
+      commandsCtx.settings.mutate((state) => {
+        delete state.commandShortcuts[editorCommandId.value!]
+      })
+    }
+  }
+  else {
+    commandsCtx.settings.mutate((state) => {
+      state.commandShortcuts[editorCommandId.value!] = [{ key: editorComposedKey.value }]
+    })
+  }
   closeEditor()
 }