fix: Allow extending code-block-lowlight (#1917)

Use the extension name when initializing the
LowlightPlugin. In this way, several extensions
can make use of the same plugin

Co-authored-by: Enrique Alcantara <ealcantara@gitlab.com>

packages/extension-code-block-lowlight/src/code-block-lowlight.ts

@@ -16,7 +16,7 @@ export const CodeBlockLowlight = CodeBlock.extend<CodeBlockLowlightOptions>({
     return [
       ...this.parent?.() || [],
       LowlightPlugin({
-        name: 'codeBlock',
+        name: this.name,
         lowlight: this.options.lowlight,
       }),
     ]