refactor: Revert role to grid instead of table

Author: Jasenkoo

src/VueDatePicker/components/Common/SelectionOverlay.vue

@@ -13,7 +13,7 @@
             ref="containerRef"
             :class="containerClass"
             :style="{ '--dp-overlay-height': `${containerHeight}px` }"
-            role="table"
+            role="grid"
         >
             <div class="dp__selection_grid_header"><slot name="header"></slot></div>
             <template v-if="$slots.overlay">

src/VueDatePicker/components/DatePicker/DpCalendar.vue

@@ -1,6 +1,6 @@
 <template>
     <div :class="calendarParentClass">
-        <div ref="calendarWrapRef" :class="calendarWrapClass" role="table">
+        <div ref="calendarWrapRef" :class="calendarWrapClass" role="grid">
             <div class="dp__calendar_header" role="row">
                 <div v-if="weekNumbers" class="dp__calendar_header_item" role="columnheader">
                     {{ weekNumName }}