Fix composer options colors in glitch-soc light theme

app/javascript/flavours/glitch/styles/mastodon-light/diff.scss

@@ -135,14 +135,13 @@
     }
   }
 
-  .composer--options {
+  .composer--options-wrapper {
     background: lighten($ui-base-color, 10%);
-    box-shadow: unset;
+  }
 
-    & > hr {
+  .composer--options > hr {
     display: none;
   }
-  }
 
   .composer--options--dropdown--content--item {
     color: $ui-primary-color;