appview/pages: more sensible handle input field

`autocapitalize` and `autocorrect` will prevent mobile browsers from
autocorrecting the user handle

Signed-off-by: Seongmin Lee <[e-mail]>

appview/pages/templates/repo/settings/access.html

···
   </label>
   <p class="text-sm text-gray-500 dark:text-gray-400">Collaborators can push to this repository.</p>
   <input
+    autocapitalize="none"
+    autocorrect="off"
     type="text"
     id="add-collaborator"
     name="collaborator"

appview/pages/templates/spindles/fragments/addMemberModal.html

···
   </label>
   <p class="text-sm text-gray-500 dark:text-gray-400">Members can register repositories and run workflows on this spindle.</p>
   <input
+    autocapitalize="none"
+    autocorrect="off"
     type="text"
     id="member-did-{{ .Id }}"
     name="member"

appview/pages/templates/user/login.html

···
                     <div class="flex flex-col">
                         <label for="handle">handle</label>
                         <input
+                            autocapitalize="none"
+                            autocorrect="off"
+                            autocomplete="username"
                             type="text"
                             id="handle"
                             name="handle"