[mirotalksfu] - add missing, fix typo

.env.template

@@ -225,6 +225,7 @@ BRAND_HTML_INJECTION=true                         # Enable HTML injection for br
 
 # Widget Configuration
 WIDGET_ENABLED=false                               # Enable branding widget (true|false)
+WIDGET_ROOM_ID=support-room                        # Widget room ID (default: support-room)
 WIDGET_THEME=dark                                  # Widget theme (dark|light)
 WIDGET_STATE=minimized                             # Widget initial state (normal|minimized|closed)
 WIDGET_TYPE=support                                # Widget type (support)