Added a button to clear all non fixed buildings in both modes (#1229)

* added the new splitter

* Update base-en.yaml

* added clear buildings button to both game modes

* Minor cleanups and added translation for new button

src/css/ingame_hud/puzzle_editor_settings.scss

@@ -57,6 +57,15 @@
                     }
                 }
             }
+
+            > .buildingsButton {
+                display: grid;
+                align-items: center;
+                @include S(margin-top, 4px);
+                > button {
+                    @include SuperSmallText;
+                }
+            }
         }
     }
 }

src/css/ingame_hud/puzzle_play_settings.scss

@@ -13,7 +13,7 @@
 
     > .section {
         display: grid;
-        @include S(grid-gap, 10px);
+        @include S(grid-gap, 5px);
         grid-auto-flow: row;
 
         > button {