Update border-color of language bar icon (#10723)

* Update color of border of color-icon

* Update web_src/less/_base.less

Co-Authored-By: 6543 <6543@obermui.de>

Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: 6543 <6543@obermui.de>

web_src/less/_base.less

@@ -1201,7 +1201,7 @@ i.icon.centerlock {
     margin-right: .5em;
     margin-left: .5em;
     display: inline;
-    border: 1px solid #ccc;
+    border: 1px solid rgba(0, 0, 0, .2);
     border-radius: 500em;
 }