refactor(gui): avoid extra negation by reversing computed var

Signed-off-by: Pranav C <pranavxc@gmail.com>

packages/nc-gui/components/general/FullScreen.vue

@@ -4,11 +4,11 @@ import { useSidebar } from '#imports'
 const rightSidebar = useSidebar('nc-right-sidebar')
 const leftSidebar = useSidebar('nc-left-sidebar')
 
-const isFullScreen = computed({
-  get: () => !(rightSidebar.isOpen.value || leftSidebar.isOpen.value),
+const isSidebarsOpen = computed({
+  get: () => rightSidebar.isOpen.value || leftSidebar.isOpen.value,
   set: (value) => {
-    rightSidebar.toggle(!value)
-    leftSidebar.toggle(!value)
+    rightSidebar.toggle(value)
+    leftSidebar.toggle(value)
   },
 })
 </script>
@@ -16,14 +16,14 @@ const isFullScreen = computed({
 <template>
   <a-tooltip>
     <!-- todo: i18n -->
-    <template #title> {{ isFullScreen ? 'Exit full width' : 'Full width' }}</template>
+    <template #title> {{ isSidebarsOpen ? 'Full width': 'Exit full width'   }}</template>
     <div
       v-e="['c:toolbar:fullscreen']"
       class="nc-fullscreen-btn cursor-pointer flex align-center self-center px-2 py-2 mr-2"
-      @click="isFullScreen = !isFullScreen"
+      @click="isSidebarsOpen = !isSidebarsOpen"
     >
-      <IcTwotoneWidthNormal v-if="isFullScreen" class="text-gray-300" />
-      <IcTwotoneWidthFull v-else class="text-gray-300" />
+      <IcTwotoneWidthFull v-if="isSidebarsOpen" class="text-gray-300" />
+      <IcTwotoneWidthNormal v-else class="text-gray-300" />
     </div>
   </a-tooltip>
 </template>