style(modal): keep conflict modal actions stacked on all sizes

src/components/NoteConflictModal.vue

@@ -51,7 +51,7 @@ onMounted(() => {
         started editing. If you save now, their changes will be overwritten.
       </p>
 
-      <div class="modal-action flex-col gap-2 sm:flex-row sm:justify-end">
+      <div class="modal-action flex-col gap-2">
         <button
           type="button"
           class="btn btn-ghost"

src/styles/app.css

@@ -109,9 +109,6 @@ a {
 a.title-stacked-note-link {
   display: block;
   overflow: visible;
-  &:hover {
-    cursor: pointer;
-  }
 }
 
 .title-stacked-note ul,