Layouts: Make the "pl_wide"-layout identical to the "pl"-layout

Part-of: <https://gitlab.gnome.org/World/Phosh/squeekboard/-/merge_requests/643>

data/keyboards/pl_wide.yaml

@@ -32,12 +32,12 @@ views:
     accents:
         - "q w ę r t y u i ó p"
         - "ą ś d f g h j k ł"
-        - "Shift_L   ż ź ć v b ń m  BackSpace"
+        - "accents_show_upper   ż ź ć v b ń m  BackSpace"
         - "show_numbers preferences         space        show_accents Return"
     upper_accents:
         - "Q W Ę R T Y U I Ó P"
         - "Ą Ś D F G H J K Ł"
-        - "Shift_L   Ż Ź Ć V B Ń M  BackSpace"
+        - "accents_show_upper   Ż Ź Ć V B Ń M  BackSpace"
         - "show_numbers preferences         space        show_upper_accents Return"
 
 buttons:
@@ -48,6 +48,15 @@ buttons:
                 unlock_view: "base"
         outline: "change-view"
         icon: "key-shift"
+    accents_show_upper:
+        action:
+            locking:
+                lock_view: "upper_accents"
+                unlock_view: "accents"
+                looks_locked_from:
+                    - "upper"
+        outline: "change-view"
+        icon: "key-shift"
     BackSpace:
         outline: "altline"
         icon: "edit-clear-symbolic"
@@ -88,6 +97,8 @@ buttons:
             locking:
                 lock_view: "upper_accents"
                 unlock_view: "upper"
+                looks_locked_from:
+                    - "accents"
         outline: "change-view"
         label: "ĄĘ"
     .: