[mirotalksfu] - improve widget

.env.template

@@ -231,6 +231,13 @@ WIDGET_STATE=minimized                             # Widget initial state (norma
 WIDGET_TYPE=support                                # Widget type (support)
 WIDGET_SUPPORT_POSITION=top-right                  # Support widget position (top-right|top-left|bottom-right|bottom-left)
 WIDGET_SUPPORT_EXPERT_IMAGES=                      # Comma-separated expert image URLs comma-separated
+
+WIDGET_SUPPORT_BUTTON_AUDIO=true                   # Show audio button in support widget (false|false)
+WIDGET_SUPPORT_BUTTON_VIDEO=true                   # Show video button in support widget (false|false)
+WIDGET_SUPPORT_BUTTON_SCREEN=true                  # Show screen share button in support widget (false|false)
+WIDGET_SUPPORT_BUTTON_CHAT=true                    # Show chat button in support widget (false|false)
+WIDGET_SUPPORT_BUTTON_JOIN=true                    # Show join button in support widget (false|false)
+
 WIDGET_SUPPORT_CHECK_ONLINE_STATUS=false           # Check online room status (true|false)
 WIDGET_SUPPORT_IS_ONLINE=true                      # Is support online (true|false)
 WIDGET_SUPPORT_HEADING=Need Help?                  # Support widget heading