[Frontend] Tweaks and minor mods

WTD-894
Changed image CSS from contain to cover
Modded default colors for text and telemetry elements to visibility;
Moved click handler position in menu-button.html for better clickability;

Conflicts:
	platform/commonUI/general/res/css/theme-espresso.css

platform/commonUI/general/res/sass/_fixed-position.scss

@@ -49,7 +49,7 @@
 		}
 		
 		.l-fixed-position-image {
-			background-size: contain;
+			background-size: cover;
 			background-repeat: no-repeat;
 			background-position: left top;
 		}
@@ -60,7 +60,7 @@
 			font-size: 0.8rem;
 			$p: $interiorMarginSm;
 			&.l-static-text {
-				overflow: auto;
+//				overflow: auto;
 				padding: $p;
 			}
 			&.l-telemetry {

platform/commonUI/general/res/sass/controls/_controls.scss

@@ -318,6 +318,10 @@ label.checkbox.custom {
 		}
 	}
 
+    .l-click-area {
+//        @include test();
+    }
+
 	.type-icon {
 		margin-right: $interiorMargin;
 	}