data/keyboards/terminal/*.yaml: Update terminal-layouts

- Fix highlighting

- Fix sizes of buttons

- Reduce layout-changes when switching views

- Make layouts more consistent

Part-of: <https://gitlab.gnome.org/World/Phosh/squeekboard/-/merge_requests/626>

data/keyboards/terminal/de_wide.yaml

@@ -34,7 +34,7 @@ views:
         - "EscSmall TabSmall Ctrl Alt ↑ ↓ ← →"
         - "~ ` · √ π τ ÷ × ¶ @"
         - "© ® £ € ¥ ^ ° { }"
-        - "show_numbers_from_symbols   % | < > = [ ]  BackSpace"
+        - "show_numbers   % | < > = [ ]  BackSpace"
         - "show_letters show_eschars preferences         space        period Return"
     eschars:
         - "EscSmall TabSmall Ctrl Alt ↑ ↓ ← →"
@@ -70,11 +70,6 @@ buttons:
             set_view: "numbers"
         outline: "altline"
         label: "123"
-    show_numbers_from_symbols:
-        action:
-            set_view: "numbers"
-        outline: "altline"
-        label: "123"
     show_letters:
         action:
             set_view: "base"