Page Editor: Minor fixes

- Removed unused import
- Added some trailing newlines to code files
- Prevented <hr>s confusing logic in MD editor
- Aligned logic to select end of header across editors

resources/js/components/toolbox-contents.ts

@@ -149,4 +149,4 @@ export class ToolboxContents extends Component {
             class: 'sidebar-page-nav menu'
         }, headerItems);
     }
-}
+}

resources/js/markdown/actions.ts

@@ -195,7 +195,7 @@ export class Actions {
      * Focus on the text for a specific header in the content.
      */
     focusOnHeader(index: number): void {
-        const headerPattern = /^\s{0,3}(#+|<h)/i;
+        const headerPattern = /^\s{0,3}(#+|<h[1-6][\s>])/i;
         const codeBoundary = /^\s{0,3}```/i;
         let currentIndex = -1;
         let inCodeBoundary = false;

resources/js/markdown/common-events.ts

@@ -1,5 +1,4 @@
 import {MarkdownEditor} from "./index.mjs";
-import {focusOnHeader} from "../wysiwyg/utils/actions";
 
 export interface HtmlOrMarkdown {
     html: string;

resources/js/wysiwyg/utils/actions.ts

@@ -109,7 +109,7 @@ export function focusOnHeader(editor: LexicalEditor, headerIndex: number): void
         const headers = $getAllNodesOfType($isHeadingNode);
         const target = headers[headerIndex];
         if (target) {
-            target.selectStart();
+            target.selectEnd();
         }
     });
-}
+}