chore: rename variable

scss/_variables.scss

@@ -166,7 +166,7 @@ $success: #37b400 !default;
 /// The color for informational messages and states.
 $info: #0058e9 !default;
 
-$invalid-border-color: rgba($error, .5) !default;
+$invalid-border: rgba($error, .5) !default;
 
 $gradient-transparent-to-black: rgba( black, 0), black;
 $gradient-transparent-to-white: rgba( white, 0), white;

scss/common/_forms.scss

@@ -258,7 +258,7 @@
         .k-numeric-wrap,
         .k-picker-wrap {
             color: $error;
-            border-color: $invalid-border-color;
+            border-color: $invalid-border;
 
             .k-select {
                 color: inherit;

scss/input/_theme.scss

@@ -41,7 +41,7 @@
         &.ng-invalid.ng-touched,
         &.ng-invalid.ng-dirty {
             color: $error;
-            border-color: $invalid-border-color;
+            border-color: $invalid-border;
         }
 
         &::-moz-selection {

scss/numerictextbox/_theme.scss

@@ -55,7 +55,7 @@
 
         .k-numeric-wrap.k-state-invalid {
             color: $error;
-            border-color: $invalid-border-color;
+            border-color: $invalid-border;
 
             .k-select {
                 color: $error;