TMS-1164: Form button fix

Author: eebbi

assets/styles/ui-components/_forms.scss

@@ -1,5 +1,4 @@
 form {
-    
     select,
     input,
     textarea {
@@ -48,6 +47,8 @@ select {
     }
 
     button[type="submit"] {
+        background-color: $black !important;
+        color: $white !important;
 
         &:after {
             mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg"><path d="M2.13436 0L0.365646 1.76877L6.09688 7.5L0.365646 13.2312L2.13436 15L9.63436 7.5L2.13436 0Z"/></svg>');
@@ -97,6 +98,8 @@ select {
 
 .gform_button_select_files,
 .gform_delete_file {
+    background-color: $black !important;
+    color: $white !important;
 
     &:hover,
     &:focus,