sway: Add saner dual monitor configuration

Use a second set of workspaces prefixed with 'F' on secondary monitor

sway/.config/sway/shared.d/dual_monitor

@@ -0,0 +1,42 @@
+# Workspaces on secondary display start with prefix F
+bindsym $mod+F1 workspace F1
+bindsym $mod+F2 workspace F2
+bindsym $mod+F3 workspace F3
+bindsym $mod+F4 workspace F4
+bindsym $mod+F5 workspace F5
+bindsym $mod+F6 workspace F6
+bindsym $mod+F7 workspace F7
+bindsym $mod+F8 workspace F8
+bindsym $mod+F9 workspace F9
+
+bindsym $mod+Shift+F1 move container to workspace F1
+bindsym $mod+Shift+F2 move container to workspace F2
+bindsym $mod+Shift+F3 move container to workspace F3
+bindsym $mod+Shift+F4 move container to workspace F4
+bindsym $mod+Shift+F5 move container to workspace F5
+bindsym $mod+Shift+F6 move container to workspace F6
+bindsym $mod+Shift+F7 move container to workspace F7
+bindsym $mod+Shift+F8 move container to workspace F8
+bindsym $mod+Shift+F9 move container to workspace F9
+
+# Bind default numeric workspaces to internal display
+workspace 1 output $output_internal
+workspace 2 output $output_internal
+workspace 3 output $output_internal
+workspace 4 output $output_internal
+workspace 5 output $output_internal
+workspace 6 output $output_internal
+workspace 7 output $output_internal
+workspace 8 output $output_internal
+workspace 9 output $output_internal
+
+# Bind secondary display workspaces to secondary with internal fallback
+workspace F1 output $output_secondary $output_internal
+workspace F2 output $output_secondary $output_internal
+workspace F3 output $output_secondary $output_internal
+workspace F4 output $output_secondary $output_internal
+workspace F5 output $output_secondary $output_internal
+workspace F6 output $output_secondary $output_internal
+workspace F7 output $output_secondary $output_internal
+workspace F8 output $output_secondary $output_internal
+workspace F9 output $output_secondary $output_internal