improve copy in app approval

app/developer/templates/developer/client_details/basic_info.html

@@ -54,14 +54,19 @@
 
   <hr>
   <h3>Submit for approval</h3>
-  <p>Before your app can be used by all SimpleLogin users, it needs to go through an approval process.</p>
+
+  <div class="alert alert-info">
+    Approval is only needed when you deploy the <b>Sign in with SimpleLogin</b> integration
+    in production. <br>
+    For local/testing/staging environment, you don't have to submit your app/website for approval. <br>
+  </div>
 
   <form method="post" enctype="multipart/form-data"
         action="{{ url_for('developer.client_detail', client_id=client.id, action="submit") }}">
     {{ approval_form.csrf_token }}
 
     <div class="form-group">
-      <label class="form-label">Tell us about your app</label>
+      <label class="form-label">Tell us about your website/app</label>
       {{ approval_form.description(
           class="form-control", rows="10",
           placeholder="This information is used for approving your application. Please give us as much info as you can, for example where you plan to use SimpleLogin, for which community, etc."
@@ -69,6 +74,11 @@
       {{ render_field_errors(approval_form.description) }}
     </div>
 
+    <div class="alert alert-warning">
+      Don't make this frequent mistake: make sure to add your production URL to the <b>Authorized Redirect URIs</b> on
+      <a href="{{ url_for('developer.client_detail_oauth_setting', client_id=client.id) }}">OAuth Settings</a>.
+    </div>
+
     <button type="submit" class="btn btn-success">Submit</button>
   </form>
 {% endblock %}