fix(ui): allow dynamic names in QEditorSlots type

[yusufkandemir]

What kind of change does this PR introduce?

• Bugfix
• Documentation

Does this PR introduce a breaking change?

• No

The PR fulfills these requirements:

• It's submitted to the dev branch (or v[X] branch)
• When resolving a specific issue, it's referenced in the PR's title (e.g. fix: #xxx[,#xxx], where "xxx" is the issue number)

Other information:
Resolves #16067. This also documents the dynamic slots more clearly as they will now be listed in the API card.

[github-actions]

Build Results

JSON API

📜 Changes detected:

diff --git a/./current-build/api/QEditor.json b/./pr-build/api/QEditor.json
index 3db2c60..946fa1f 100644
--- a/./current-build/api/QEditor.json
+++ b/./pr-build/api/QEditor.json
@@ -340,6 +340,11 @@
       "category": "content"
     }
   },
+  "slots": {
+    "[command]": {
+      "desc": "Content for the given command in the toolbar"
+    }
+  },
   "events": {
     "fullscreen": {
       "desc": "Emitted when fullscreen state changes",

Types

📜 Changes detected:

diff --git a/./current-build/types/index.d.ts b/./pr-build/types/index.d.ts
index a62a907..a0217cd 100644
--- a/./current-build/types/index.d.ts
+++ b/./pr-build/types/index.d.ts
@@ -3497,7 +3497,12 @@ export interface QEditorProps {
   onLinkHide?: () => void;
 }
 
-export interface QEditorSlots {}
+export interface QEditorSlots {
+  /**
+   * Content for the given command in the toolbar
+   */
+  [key: `${string}`]: () => VNode[];
+}
 
 export interface QEditor extends ComponentPublicInstance<QEditorProps> {
   /**