[frio] Remove textcomplete hidden input box shadows in dark/black schemes

view/theme/frio/scheme/black.css

@@ -345,3 +345,7 @@ aside .widget,
 	box-shadow: 0 0 3px $link_color;
 	-webkit-box-shadow: 0 0 3px $link_color;
 }
+
+input[type=text].tt-input {
+	box-shadow: none;
+}

view/theme/frio/scheme/dark.css

@@ -318,3 +318,7 @@ legend {
 .adminpage .table-hover > tbody > tr:hover + tr.details {
 	background-color: $nav_bg;
 }
+
+input[type=text].tt-input {
+	box-shadow: none;
+}