webui: styles for alert icons

https://fedorahosted.org/freeipa/ticket/4278

Reviewed-By: Endi Sukma Dewata <edewata@redhat.com>

install/ui/less/alerts.less

@@ -0,0 +1,33 @@
+//
+// Alerts
+// --------------------------------------------------
+
+// Add styles for Font Awesome
+
+.alert {
+    > .fa, > .fa-layered {
+        font-size: 20px;
+        position: absolute;
+        left: 7px;
+        top: 7px;
+    }
+    .fa-info {
+        color: #72767b;
+    }
+}
+
+.alert-success .fa-check-circle-o {
+    color: #5cb75c;
+}
+
+.alert-info .fa-info-circle {
+    color: #ccc;
+}
+
+.alert-danger .fa-exclamation-circle {
+    color: #c90813;
+}
+
+.alert-warning .fa-warning {
+    color: #eb7720;
+}

install/ui/less/ipa.less

@@ -8,6 +8,7 @@
 @import "dialog";
 @import "brand";
 @import "forms-override";
+@import "alerts";
 @import "widgets";
 @import "plugins/otp";
 @import "login.less";