fix: QLayout fixes regarding side openers and page scroll

Author: rstoenescu

src/components/layout/QLayout.vue

@@ -1,12 +1,12 @@
 <template>
   <div class="layout">
     <div
-      v-if="!$q.platform.is.ios && $slots.left && !leftState.openedSmall"
+      v-if="!$q.platform.is.ios && $slots.left && !leftState.openedSmall && !leftOnLayout"
       class="layout-side-opener fixed-left"
       v-touch-pan.horizontal="__openLeftByTouch"
     ></div>
     <div
-      v-if="!$q.platform.is.ios && $slots.right && !rightState.openedSmall"
+      v-if="!$q.platform.is.ios && $slots.right && !rightState.openedSmall && !rightOnLayout"
       class="layout-side-opener fixed-right"
       v-touch-pan.horizontal="__openRightByTouch"
     ></div>

src/components/layout/side-mixin.js

@@ -153,8 +153,8 @@ export default {
       }
 
       if (evt.isFirst) {
-        document.body.classList.add('with-layout-side-opened')
         if (withBackdrop) {
+          document.body.classList.add('with-layout-side-opened')
           this.backdrop.inTransit = side
         }
         state.inTransit = true