Restyling of textarea input fields

This mostly includes the Code Mirror instances as well as textarea fields on the credentials form. Also includes the styling of radio button for the variables textarea box.

awx/ui/client/legacy-styles/forms.less

@@ -140,11 +140,59 @@
     padding-right: 50px;
 }
 
+.Form-textArea{
+    width:100%;
+}
+
+.CodeMirror{
+    border-radius: 5px;
+    font-family: 'Open Sans';
+    font-style: normal;
+    color: @default-data-txt;
+}
+
+.CodeMirror-gutters{
+    background-color:@code-mirror-gutter !important;
+}
+
+input[type='radio'] {
+  -webkit-appearance:none;
+  width:14px;
+  height:14px;
+  border:1px solid @radio-bg;
+  border-radius:50%;
+  outline:none;
+  vertical-align: sub;
+}
+
+input[type='radio']:focus {
+  outline:none;
+}
+
+input[type='radio']:hover {
+  box-shadow:0 0 5px 0px @btn-bg-hov inset;
+}
+
+input[type='radio']:before {
+  content:'';
+  display:block;
+  width:65%;
+  height:60%;
+  margin: 20% auto;
+  border-radius:50%;
+}
+
+input[type='radio']:checked:before {
+  background:@radio-bg;
+  outline:none;
+}
+
 .Form-inputLabel{
     text-transform: uppercase;
     color: @default-interface-txt;
     font-weight: normal;
     font-size: small;
+    padding-right:5px;
 }
 
 .Form-buttons{