feat(ckeditor5): create an empty toolbar for code blocks

packages/ckeditor5/src/plugins.ts

@@ -23,6 +23,7 @@ import "@triliumnext/ckeditor5-mermaid/index.css";
 import "@triliumnext/ckeditor5-admonition/index.css";
 import "@triliumnext/ckeditor5-footnotes/index.css";
 import "@triliumnext/ckeditor5-math/index.css";
+import CodeBlockToolbar from "./plugins/code_block_toolbar.js";
 
 /**
  * Plugins that are specific to Trilium and not part of the CKEditor 5 core, included in both text editors but not in the attribute editor.
@@ -38,7 +39,8 @@ const TRILIUM_PLUGINS: typeof Plugin[] = [
     MarkdownImportPlugin,
     IncludeNote,
     Uploadfileplugin,
-    SyntaxHighlighting
+    SyntaxHighlighting,
+    CodeBlockToolbar
 ];
 
 /**