Use class to style screenreader-only text

src/App.scss

@@ -580,8 +580,6 @@ textarea,
   }
 
   &[type="checkbox"] {
-    display: none;
-
     &:checked + label::before {
       color: $fallback--text;
       color: var(--inputText, $fallback--text);
@@ -887,3 +885,15 @@ option {
   opacity: 0;
 }
 /* stylelint-enable no-descending-specificity */
+
+.visible-for-screenreader-only {
+  display: block;
+  width: 1px;
+  height: 1px;
+  margin: -1px;
+  overflow: hidden;
+  visibility: visible;
+  clip: rect(0 0 0 0);
+  padding: 0;
+  position: absolute;
+}

src/_mixins.scss

@@ -16,15 +16,3 @@
     @content;
   }
 }
-
-@mixin visible-for-screenreader-only {
-  display: block;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  overflow: hidden;
-  visibility: visible;
-  clip: rect(0 0 0 0);
-  padding: 0;
-  position: absolute;
-}

src/components/checkbox/checkbox.vue

@@ -5,6 +5,7 @@
   >
     <input
       type="checkbox"
+      class="visible-for-screenreader-only"
       :disabled="disabled"
       :checked="modelValue"
       :indeterminate="indeterminate"
@@ -85,8 +86,6 @@ export default {
   }
 
   input[type="checkbox"] {
-    @include visible-for-screenreader-only;
-
     &:checked + .checkbox-indicator::before {
       color: $fallback--text;
       color: var(--inputText, $fallback--text);

src/components/screen_reader_notice/screen_reader_notice.vue

@@ -1,6 +1,6 @@
 <template>
   <div
-    class="screen-reader-text"
+    class="visible-for-screenreader-only"
     :aria-live="ariaLive"
   >
     {{ currentText }}
@@ -8,11 +8,3 @@
 </template>
 
 <script src="./screen_reader_notice.js"></script>
-
-<style lang="scss">
-@import "../../mixins";
-
-.screen-reader-text {
-  @include visible-for-screenreader-only;
-}
-</style>

src/components/settings_modal/helpers/modified_indicator.vue

@@ -5,12 +5,12 @@
   >
     <Popover
       trigger="hover"
+      :trigger-attrs="{ 'aria-label': $t('settings.setting_changed') }"
     >
       <template #trigger>
         &nbsp;
         <FAIcon
           icon="wrench"
-          :aria-label="$t('settings.setting_changed')"
         />
       </template>
       <template #content>