Fix text box default value.

app.py

@@ -54,9 +54,13 @@ iface = gr.Interface(
     inputs=[
         gr.Textbox(
             label="Text",
-            default="Text to synthesize.",
+            value="Text to synthesize."
         ),
-        gr.Dropdown(label="Variant", choices=list(ISO_CODES.keys()), value="Tachelhit")
+        gr.Dropdown(
+            label="Variant",
+            choices=list(ISO_CODES.keys()),
+            value="Tachelhit"
+        )
     ],
     outputs=gr.Audio(label="Output", type="numpy"),
     examples=examples,