Fix string type in ha-form-string (#4559)

src/auth/ha-authorize.ts

@@ -91,7 +91,6 @@ class HaAuthorize extends litLocalizeLiteMixin(LitElement) {
         .redirectUri="${this.redirectUri}"
         .oauth2State="${this.oauth2State}"
         .authProvider="${this._authProvider}"
-        .step="{{step}}"
       ></ha-auth-flow>
 
       ${inactiveProviders.length > 0

src/components/ha-form/ha-form-string.ts

@@ -81,7 +81,7 @@ export class HaFormString extends LitElement implements HaFormElement {
     });
   }
 
-  private _stringType() {
+  private get _stringType() {
     if (this.schema.format) {
       if (["email", "url"].includes(this.schema.format)) {
         return this.schema.format;