disable chat and suggestions on busy (#783)

Co-authored-by: Philipp Rudiger <prudiger@anaconda.com>

lumen/ai/coordinator.py

@@ -247,6 +247,7 @@ async def run_demo(event):
                     button_style="outline",
                     on_click=use_suggestion,
                     margin=5,
+                    disabled=self.interface.param.loading
                 )
                 for suggestion in suggestions
             ],
@@ -259,6 +260,7 @@ async def run_demo(event):
                 button_type="primary",
                 on_click=run_demo,
                 margin=5,
+                disabled=self.interface.param.loading
             ))
         disable_js = "cb_obj.origin.disabled = true; setTimeout(() => cb_obj.origin.disabled = false, 3000)"
         for b in suggestion_buttons:

lumen/ai/ui.py

@@ -378,7 +378,7 @@ def explore_table_if_single(event):
         def get_explorers(load):
             if not load:
                 return
-            with explore_button.param.update(loading=True):
+            with explore_button.param.update(loading=True), self._coordinator.interface.param.update(loading=True):
                 explorers = []
                 for table in table_select.value:
                     source = source_map[table]