Improve Txt2Img layout: use Row for model/run and align components like other tabs

ui/shared/txt2img_ui.py

@@ -19,15 +19,16 @@ def create_ui():
         components.update(create_model_architecture_filter_ui(prefix))
         
         # Layout for model selection and run button
-        components.update(create_category_filter_ui(prefix))
-        components[f'base_model_{prefix}'] = gr.Dropdown(
-            label="Base Model",
-            choices=list(MODEL_MAP_CHECKPOINT.keys()),
-            value=list(MODEL_MAP_CHECKPOINT.keys())[0],
-            scale=3,
-            allow_custom_value=True,
-        )
-        components[f'run_{prefix}'] = gr.Button("Run", variant="primary")
+        with gr.Row():
+            components.update(create_category_filter_ui(prefix))
+            components[f'base_model_{prefix}'] = gr.Dropdown(
+                label="Base Model",
+                choices=list(MODEL_MAP_CHECKPOINT.keys()),
+                value=list(MODEL_MAP_CHECKPOINT.keys())[0],
+                scale=3,
+                allow_custom_value=True,
+            )
+            components[f'run_{prefix}'] = gr.Button("Run", variant="primary")
         
         components[f'prompt_{prefix}'] = gr.Text(label="Prompt", lines=3)
         components[f'neg_prompt_{prefix}'] = gr.Text(label="Negative prompt", lines=3)