Remove the "or Email"

The email here can be confused with the Cloudron email which it is not.
The preferred approach is to login via username anyway.

src/oauth2views/password_reset_request.ejs

@@ -16,7 +16,7 @@
         <form action="/api/v1/session/password/resetRequest" method="post" autocomplete="off">
           <input type="hidden" name="_csrf" value="<%= csrf %>"/>
           <div class="form-group">
-            <label class="control-label" for="inputIdentifier">Username or Email</label>
+            <label class="control-label" for="inputIdentifier">Username</label>
             <input type="text" class="form-control" id="inputIdentifier" name="identifier" autofocus required>
           </div>
           <input class="btn btn-primary btn-outline pull-right" type="submit" value="Reset"/>