fix(select): include missing styles

Author: thetaPC

core/src/components/select/select.md.solid.scss

@@ -27,6 +27,7 @@
  * If the select has a validity state, the
  * border should reflect that as a color.
  */
+:host(.select-expanded.select-fill-solid.ion-valid),
 :host(.ion-focused.select-fill-solid.ion-valid),
 :host(.select-fill-solid.ion-touched.ion-invalid) {
   --border-color: var(--highlight-color);
@@ -58,7 +59,7 @@
 :host(.select-fill-solid.select-expanded),
 :host(.select-fill-solid.ion-focused) {
   --background: #{$background-color-step-150};
-  --border-color: #{$background-color-step-750};
+  --border-color: var(--highlight-color);
 }
 
 :host(.select-fill-solid) .select-wrapper {

core/src/components/select/select.scss

@@ -308,7 +308,9 @@ button {
  * highlight when the select is blurred.
  */
 :host(.ion-focused.ion-valid),
-:host(.ion-touched.ion-invalid) {
+:host(.select-expanded.ion-valid),
+:host(.ion-touched.ion-invalid),
+:host(.select-expanded.ion-touched.ion-invalid) {
   --border-color: var(--highlight-color);
 }
 
@@ -320,7 +322,7 @@ button {
  * present on the select. Otherwise the helper text should
  * be shown.
  */
- .select-bottom .error-text {
+.select-bottom .error-text {
   display: none;
 
   color: var(--highlight-color-invalid);