remove triangle-btn color setting from override-list-group-item-for-pagetree

packages/app/src/styles/theme/_apply-colors-dark.scss

@@ -281,8 +281,7 @@ ul.pagination {
       $color-list-hover,
       $bgcolor-list-hover,
       $color-list-active,
-      lighten($bgcolor-list-hover, 5%),
-      $gray-500
+      lighten($bgcolor-list-hover, 5%)
     );
     .grw-pagetree-triangle-btn {
       @include button-outline-svg-icon-variant($secondary, $gray-200);

packages/app/src/styles/theme/_apply-colors-light.scss

@@ -176,8 +176,7 @@ $border-color: $border-color-global;
       $color-list-hover,
       $bgcolor-list-hover,
       $color-list-active,
-      $bgcolor-list-active,
-      $gray-400
+      $bgcolor-list-active
     );
     .grw-pagetree-triangle-btn {
       @include button-outline-svg-icon-variant($gray-400, $primary);

packages/app/src/styles/theme/christmas.scss

@@ -194,8 +194,7 @@ html[dark] {
         $color-list-hover,
         $bgcolor-list-hover,
         $color-list-active,
-        $bgcolor-list-hover,
-        $gray-400
+        $bgcolor-list-hover
       );
     }
   }

packages/app/src/styles/theme/future.scss

@@ -122,8 +122,7 @@ html[dark] {
         $color-list-hover,
         $bgcolor-list-hover,
         $color-list-active,
-        lighten($bgcolor-list-hover, 5%),
-        $gray-600
+        lighten($bgcolor-list-hover, 5%)
       );
     }
   }

packages/app/src/styles/theme/island.scss

@@ -131,8 +131,7 @@ html[dark] {
         $color-list-hover,
         $bgcolor-list-hover,
         $color-list-active,
-        lighten($bgcolor-list-hover, 5%),
-        $gray-400
+        lighten($bgcolor-list-hover, 5%)
       );
     }
   }

packages/app/src/styles/theme/kibela.scss

@@ -122,8 +122,7 @@ html[dark] {
         $color-list-hover,
         $bgcolor-list-hover,
         $color-list-active,
-        lighten($bgcolor-list-active, 55%),
-        $gray-400
+        lighten($bgcolor-list-active, 55%)
       );
     }
   }

packages/app/src/styles/theme/mixins/_list-group.scss

@@ -24,8 +24,7 @@
   $color-hover: $color,
   $bgcolor-hover: $bgcolor,
   $color-active: $color,
-  $bgcolor-active: $bgcolor,
-  $button-color
+  $bgcolor-active: $bgcolor
 ) {
   .grw-pagetree-is-over {
     background: $bgcolor-hover;
@@ -38,13 +37,6 @@
     &.grw-pagetree-current-page-item {
       background: $bgcolor-hover;
     }
-    .grw-pagetree-triangle-btn {
-      &:not(:hover) {
-        svg {
-          fill: $button-color;
-        }
-      }
-    }
 
     &.list-group-item-action {
       &:hover {