Fix configure icon on Flat design

See https://github.com/marienfressinaud/FreshRSS/issues/468

p/themes/Flat/flat.css

@@ -464,6 +464,11 @@ a.btn {
 .box .box-content .item .configure {
 	visibility: hidden;
 }
+.box .box-content .item .configure .icon {
+	vertical-align: middle;
+	background-color: #95a5a6;
+	border-radius: 3px;
+}
 .box .box-content .item:hover .configure {
 	visibility: visible;
 }

p/themes/base-theme/template.css

@@ -73,7 +73,9 @@ label {
 input {
 	width: 180px;
 }
-textarea {
+textarea,
+input[type="file"],
+input.extend:focus {
 	width: 300px;
 }
 input, select, textarea {
@@ -85,9 +87,6 @@ input[type="checkbox"] {
 	width: 15px !important;
 	min-height: 15px !important;
 }
-input.extend:focus {
-	width: 300px;
-}
 button.as-link,
 button.as-link:hover,
 button.as-link:active {