UX: Add title to button (#334)

assets/javascripts/discourse/connectors/post-text-buttons/ai-helper-options-menu.gjs

@@ -133,6 +133,7 @@ export default class AIHelperOptionsMenu extends Component {
         <DButton
           @class="btn-flat ai-post-helper__trigger"
           @icon="discourse-sparkles"
+          @title="discourse_ai.ai_helper.post_options_menu.title"
           @label="discourse_ai.ai_helper.post_options_menu.trigger"
           @action={{this.showAIHelperOptions}}
         />

config/locales/client.en.yml

@@ -97,6 +97,7 @@ en:
             submit: "Send Prompt"
         post_options_menu:
           trigger: "Ask AI"
+          title: "Ask AI"
           loading: "AI is generating"
           close: "Close"
           copy: "Copy"