Add backend translation support for selector select (#15064)

* Base for selector translations

* Allow translations for ha-selector-select

* Fetch translation for config flow and onboarding

* Get translation_key from step handler

* Add domain property to DataEntry flow

* Revert fetching translation for onboarding flow

* Leave domain for repair flows

* Use localizeValue function

* Change type

* Import selector translations in issue flow

Co-authored-by: Paul Bottein <paul.bottein@gmail.com>

src/components/ha-selector/ha-selector.ts

@@ -51,6 +51,8 @@ export class HaSelector extends LitElement {
 
   @property() public helper?: string;
 
+  @property() public localizeValue?: (key: string) => string;
+
   @property() public placeholder?: any;
 
   @property({ type: Boolean }) public disabled = false;
@@ -86,6 +88,7 @@ export class HaSelector extends LitElement {
         required: this.required,
         helper: this.helper,
         context: this.context,
+        localizeValue: this.localizeValue,
         id: "selector",
       })}
     `;