Android: Add support for Markdown editor plugins (#10086)

Co-authored-by: Laurent Cozic <laurent22@users.noreply.github.com>

packages/app-mobile/components/NoteEditor/commandDeclarations.ts

@@ -0,0 +1,39 @@
+import { CommandDeclaration } from '@joplin/lib/services/CommandService';
+
+export const enabledCondition = (_commandName: string) => {
+	const output = [
+		'!modalDialogVisible',
+		'!noteIsReadOnly',
+	];
+
+	return output.filter(c => !!c).join(' && ');
+};
+
+const declarations: CommandDeclaration[] = [
+	{
+		name: 'insertText',
+	},
+	{
+		name: 'editor.undo',
+	},
+	{
+		name: 'editor.redo',
+	},
+	{
+		name: 'selectedText',
+	},
+	{
+		name: 'replaceSelection',
+	},
+	{
+		name: 'editor.setText',
+	},
+	{
+		name: 'editor.focus',
+	},
+	{
+		name: 'editor.execCommand',
+	},
+];
+
+export default declarations;