Add username filter to admin invitations index

app/views/admin/_username_search_form.html.erb

@@ -0,0 +1,11 @@
+<%= form_with url: path, method: :get, local: true, class: "flex gap-1" do %>
+  <%= text_field_tag :username, @username, placeholder: 'Filter by username' %>
+  <%= button_tag type: 'submit', name: nil, title: "Filter", class: 'btn-md btn-icon btn-outline' do %>
+    <%= render partial: "icons/filter", locals: { custom_class: "text-blue-600 h-4 w-4 inline" } %>
+  <% end %>
+  <% if @username %>
+    <%= link_to path, title: "Remove filter", class: 'btn-md btn-icon btn-outline' do  %>
+      <%= render partial: "icons/x", locals: { custom_class: "text-red-600 h-4 w-4 inline" } %>
+    <% end %>
+  <% end %>
+<% end %>

app/views/admin/donations/index.html.erb

@@ -19,17 +19,8 @@
   </section>
 
   <section>
-    <%= form_with url: admin_donations_path, method: :get, local: true, class: "flex gap-1" do %>
-      <%= text_field_tag :username, @username, placeholder: 'Filter by username' %>
-      <%= button_tag type: 'submit', name: nil, title: "Filter", class: 'btn-md btn-icon btn-outline' do %>
-        <%= render partial: "icons/filter", locals: { custom_class: "text-blue-600 h-4 w-4 inline" } %>
-      <% end %>
-      <% if @username %>
-        <%= link_to admin_donations_path, title: "Remove filter", class: 'btn-md btn-icon btn-outline' do  %>
-          <%= render partial: "icons/x", locals: { custom_class: "text-red-600 h-4 w-4 inline" } %>
-        <% end %>
-      <% end %>
-    <% end %>
+    <%= render partial: "admin/username_search_form",
+               locals: { path: admin_donations_path } %>
   </section>
 
   <% if @pending_donations.present? %>

app/views/admin/invitations/index.html.erb

@@ -21,6 +21,12 @@
       ) %>
     <% end %>
   </section>
+
+  <section>
+    <%= render partial: "admin/username_search_form",
+               locals: { path: admin_invitations_path } %>
+  </section>
+
   <% if @invitations_used.any? %>
     <section>
       <h3>Accepted</h3>