[tools/shoestring]: drop explicit width

 problem: smaller screen sizes are not supported
solution: remove explicit width=200

tools/shoestring/shoestring/wizard/screens/obligatory.py

@@ -189,7 +189,7 @@ def switch_to_first_tab():
 					filter=show_private_key_tabs
 				),
 				ConditionalContainer(main_private_key_tabs, filter=show_private_key_tabs)
-			], width=200),
+			]),
 			padding=1
 		),