update class to fix footer lang button for firefox

lms/static/sass/shared/_footer-edx.scss

@@ -516,7 +516,7 @@ footer#footer-edx-v3 {
     .edx-footer-logo {
       display: inline-flex;
 
-      @include margin-left(20px);
+      @include margin-left(0);
 
       margin-top: 5px;
     }
@@ -602,7 +602,7 @@ footer#footer-edx-v3 {
       float: none;
       display: block;
 
-      @include margin-left($baseline);
+      @include margin-left(0);
     }
 
     ul.social li {
@@ -659,7 +659,7 @@ footer#footer-edx-v3 {
 
 
     .col-xl-2 .edx-footer-logo {
-      @include margin-left($baseline);
+      @include margin-left(0);
       @include padding(0, 0, $baseline, $baseline);
     }
 
@@ -726,6 +726,7 @@ footer#footer-edx-v3 {
     .col-xl-2 .footer-language-selector {
       display: inline-block;
       width: max-content;
+      margin-left: 0;
     }
 
     ul.social li {
@@ -842,5 +843,20 @@ footer#footer-edx-v3 {
     }
   }
 
+  .select-lang-button {
+    padding: 3px;
+    color: $m-blue-d3 !important;
+    height: 30px;
+    margin-left: 0;
+
+    &:hover,
+    &:active,
+    &:focus {
+        background: $m-blue-d3 !important;
+        color: white !important;
+    }
+}
+
+
   @extend %ui-print-excluded;
 }

themes/edx.org/lms/static/sass/partials/lms/theme/_extras.scss

@@ -21,15 +21,3 @@
     }
   }
 }
-.select-lang-button {
-    padding: 3px;
-    color: $m-blue-d3 !important;
-    height: 30px;
-
-    &:hover,
-    &:active,
-    &:focus {
-        background: $m-blue-d3 !important;
-        color: white !important;
-    }
-}

themes/edx.org/lms/templates/footer.html

@@ -24,7 +24,7 @@
 
 <div class="container">
     <div class="row main-row"><!-- row -->
-        <div class="col-xl-2 col-lg-12 col-md-3 col-sm-8 col-xs-10 column-1 flex-column column-styles">
+        <div class="col-xl-2 col-lg-12 col-md-2 col-sm-8 col-xs-10 column-1 flex-column column-styles">
             <div class="row">
                 <div class="col-12 column-2-2 column-styles">
                 <div class="edx-footer-logo">