Feat: Integrate codemirror-toolbar with markdownItems into e_app_codemirror_v5.svelte for basic rich text editing.

src/lib/e_app_codemirror_v5.svelte

@@ -44,6 +44,8 @@ import { markdown, markdownLanguage } from '@codemirror/lang-markdown';
 // import { html } from '@codemirror/lang-html';
 import { oneDark } from "@codemirror/theme-one-dark";
 
+import toolbar, { markdownItems } from 'codemirror-toolbar';
+
 // Props
 export let content: string = 'test test test test';
 export let new_content: string = '';
@@ -161,6 +163,9 @@ $: editor_extensions = [
     // css(),
     // html(),
     theme,
+    toolbar({
+        items: markdownItems,
+    }),
 
     ...extensions
 ];