#2825 Fixes empty messages showing in form state

src/definitions/collections/form.less

@@ -372,10 +372,10 @@
 ---------------------*/
 
 /* On Form */
-.ui.form.success .success.message {
+.ui.form.success .success.message:not(:empty) {
   display: block;
 }
-.ui.form.success .icon.success.message {
+.ui.form.success .icon.success.message:not(:empty) {
   display: flex;
 }
 
@@ -384,10 +384,10 @@
 ---------------------*/
 
 /* On Form */
-.ui.form.warning .warning.message {
+.ui.form.warning .warning.message:not(:empty) {
   display: block;
 }
-.ui.form.warning .icon.warning.message {
+.ui.form.warning .icon.warning.message:not(:empty) {
   display: flex;
 }
 
@@ -396,10 +396,10 @@
 ---------------------*/
 
 /* On Form */
-.ui.form.error .error.message {
+.ui.form.error .error.message:not(:empty) {
   display: block;
 }
-.ui.form.error .icon.error.message {
+.ui.form.error .icon.error.message:not(:empty) {
   display: flex;
 }