Merge pull request #4577 from JonasPfeiferb1/master

fixed one Typo in CSS Style Sheet

client/components/boards/boardColors.css

@@ -1141,7 +1141,7 @@
   color: rgba(0,0,0,0.5);
   position: absolute;
   margin-top: -34px;
-  margin-let: -11px;
+  margin-left: -11px;
 }
 .board-color-clearblue a.fa,
 .board-color-clearblue a i.fa {