prevent vertical scroll when cell is outside the grid

partials/GridEditor.vue

 <template lang="pug">
 
   div.cell-grid-container(
-  :class="{'overflow-hidden': mobileTempCell.show && cachedNewCell && !mobileTempCell.button}")
+  :class="{'overflow-hidden': mobileTempCell.show && cachedNewCell && !mobileTempCell.button}",
+  style="overflow-y: hidden;")
     q-modal(v-model="modal", minimized, content-css="background-color: #eee; border-radius: .75rem;")
       grid-editor-editing-cells-mobile
       //
@@ -139,6 +140,7 @@
 
           //----- resize handler (top left)
           .resize-handler-mobile.top-left.text-dark.fixed.justify-center.row.bg-white.shadow-6(
+          v-if="mobileTempCell.onGrid",
           v-touch-pan="handleTopLeft", round, flat,
           :style="{left: resizeHandler.topLeft.x - 20 + 'px', top: resizeHandler.topLeft.y - 20 + 'px'}")
             // q-icon.self-center.rotate-180(name="signal_cellular_4_bar", size="12px", style="margin-top: 2px;")
@@ -146,6 +148,7 @@
 
           //----- resize handler (bottom right)
           .resize-handler-mobile.bottom-right.text-dark.fixed.justify-center.row.bg-white.shadow-6(
+          v-if="mobileTempCell.onGrid",
           v-touch-pan="testButton", round, flat,
           :style="{left: resizeHandler.bottomRight.x - 20 + 'px', top: resizeHandler.bottomRight.y - 20 + 'px'}")
             q-icon.self-center(name="signal_cellular_4_bar", size="12px", style="margin-left: -3px;")