Remove old theming, use correct theme colors and a friendlier icon

projects/common-map/src/fm-map/components/layer-switcher/layer-switcher.component.html

@@ -1,5 +1,5 @@
 <div class="rounded-circle layer-switcher" (click)="handleClick($event)">
-  <i class="fa fa-map"></i>  
+  <i class="fa fa-map-o"></i>  
   <div class="layers hidden" [ngClass]="{'hidden':!(showLayerSwitcher|async)}" (click)="$event.stopPropagation();">
     <div class="card layers-card m-1">
       <div class="card-header" i18n>
@@ -8,13 +8,13 @@
       </div>
       <ul class="navbar-nav">
         <li class="nav-item py-0">
-          <span i18n><i class="fa fa-map" aria-hidden="true"></i> Base maps</span>
+          <span i18n><i class="fa fa-map-o" aria-hidden="true"></i> Base maps</span>
           <div  class="mb-4">
             <fm-map-layer-list [baseLayers]="true" [itemLayers]="baseLayers|async" [selectedLayer]="selectedBaseLayer|async" (onSelectLayer)="handleSelectBaseLayer($event)"></fm-map-layer-list>
           </div>
         </li>
         <li class="nav-item py-0">
-          <span i18n><i class="fa fa-map" aria-hidden="true"></i> Overlays</span>
+          <span i18n><i class="fa fa-map-o" aria-hidden="true"></i> Overlays</span>
           <div class="mb-4">
             <fm-map-layer-list [itemLayers]="overlayLayers|async" [selectedLayer]="selectedOverlayLayer|async" (onDelete)="handleOnDelete($event)" (onToggleVisibility)="handleOnToggleVisibility($event)" (onSetOpacity)="handleOnSetOpacity($event)" (onZoomToExtent)="handleZoomToExtent($event)" (onSelectLayer)="handleSelectOverlayLayer($event)"></fm-map-layer-list>
           </div>

projects/common-map/src/fm-map/components/layer-switcher/layer-switcher.component.scss

@@ -1,4 +1,3 @@
-@import "../../_theme.scss";
 @import "~bootstrap/scss/bootstrap.scss";
 
 
@@ -6,11 +5,12 @@
   display:block; 
   width:2.5em;
   height:2.5em;
-  background-color: white;
+  background-color: $body-bg;
   background-size: contain;
   margin-top:0.5em;
   text-align: center;
   line-height: 2.5em; 
+  color: $secondary;
 }
 
 .layers {