refactor(ui): a11y improvements

components/smart/AceEditor.vue

@@ -41,7 +41,6 @@
           v-if="siblingDropDownIndex == index"
           ref="options"
           interactive
-          tabindex="-1"
           trigger="click"
           theme="popover"
           arrow

components/smart/ChangeLanguage.vue

@@ -1,14 +1,7 @@
 <template>
   <span class="inline-flex">
     <span class="select-wrapper">
-      <tippy
-        ref="language"
-        interactive
-        tabindex="-1"
-        trigger="click"
-        theme="popover"
-        arrow
-      >
+      <tippy ref="language" interactive trigger="click" theme="popover" arrow>
         <template #trigger>
           <ButtonSecondary
             v-tippy="{ theme: 'tooltip' }"

components/smart/FontSizePicker.vue

@@ -1,14 +1,7 @@
 <template>
   <span class="inline-flex">
     <span class="select-wrapper">
-      <tippy
-        ref="fontSize"
-        interactive
-        tabindex="-1"
-        trigger="click"
-        theme="popover"
-        arrow
-      >
+      <tippy ref="fontSize" interactive trigger="click" theme="popover" arrow>
         <template #trigger>
           <ButtonSecondary
             v-tippy="{ theme: 'tooltip' }"

components/smart/Tabs.vue

@@ -8,7 +8,7 @@
             :key="`tab-${index}`"
             class="tab"
             :class="{ active: tab.active }"
-            :tabindex="0"
+            tabindex="0"
             @keyup.enter="selectTab(tab)"
             @click="selectTab(tab)"
           >