Replace `<button>` with `#submit` invocation

This commit refactors the View layer’s notes#new template by replacing a hard-coded <button> element with a call to ActionView::Helpers::FormBuilder#submit.

When we run the test suite again, it still passes.


      app/views/notes/new.html.erb

diff --git a/app/views/notes/new.html.erb b/app/views/notes/new.html.erb
index 6258c94..9b53fd1 100644
--- a/app/views/notes/new.html.erb
+++ b/app/views/notes/new.html.erb
@@ -2,5 +2,5 @@
   <%= form.label(:content, "Message") %>
   <%= form.text_area(:content) %>
 
-  <button>Share</button>
+  <%= form.submit("Share") %>
 <% end %>

Replace <button> with #submit invocation

Replace `<button>` with `#submit` invocation