feat: update browser tab title to MADLAD-400 Translate

Align Gradio Blocks title with the renamed repository.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app.py

@@ -98,7 +98,7 @@ def _translate_with_loading(
 def _build_demo() -> gr.Blocks:
     _, language_names = _build_language_mappings()
 
-    with gr.Blocks(title="MADLAD-400 Translation") as demo:
+    with gr.Blocks(title="MADLAD-400 Translate") as demo:
         with gr.Row(equal_height=True):
             with gr.Column():
                 gr.Dropdown(