fix: 🐛 add read-only hmac field and enable oidc auth creation

ui/admin/app/components/form/auth-method/oidc/index.hbs

@@ -6,6 +6,14 @@
   @showEditToggle={{if @model.isNew false true}}
   as |form|
 >
+
+  <form.actions
+    @disabled={{if @model.cannotSave @model.cannotSave}}
+    @enableEditText={{t 'actions.edit-form'}}
+    @submitText={{t 'actions.save'}}
+    @cancelText={{t 'actions.cancel'}}
+  />
+
   <form.input
     @value={{@model.type}}
     @label={{t 'form.type.label'}}
@@ -118,6 +126,15 @@
     {{/if}}
   </form.input>
 
+  {{#unless @model.isNew}}
+    <form.input
+      @value={{@model.attributes.client_secret_hmac}}
+      @label={{t 'form.client_secret_hmac.label'}}
+      readonly={{true}}
+      @disabled={{true}}
+    />
+  {{/unless}}
+
   {{! Signing Algorithms }}
   <Rose::Form::Fieldset>
     <:title>{{t 'form.signing_algorithms.label'}}</:title>