refactor: set an explicit value for aria-hidden (#7182)

Author: Lukas742

packages/main/src/components/FilterGroupItem/index.tsx

@@ -259,7 +259,7 @@ const FilterGroupItem = forwardRef<HTMLDivElement, FilterGroupItemPropTypes & Fi
               )}
               {active && (
                 <>
-                  <Icon name={circleTask2Icon} className={classNames.dialogActiveIcon} aria-hidden />
+                  <Icon name={circleTask2Icon} className={classNames.dialogActiveIcon} aria-hidden="true" />
                   <span className={classNames.pseudoInvisibleText}>{i18nBundle.getText(FILTER_IS_ACTIVE)}</span>
                 </>
               )}

packages/main/src/components/ObjectPage/index.tsx

@@ -717,13 +717,13 @@ const ObjectPage = forwardRef<ObjectPageDomRef, ObjectPagePropTypes>((props, ref
                 ? `${headerContentHeight}px`
                 : 0
           }}
-          aria-hidden
+          aria-hidden="true"
         />
         {placeholder ? placeholder : sections}
-        <div style={{ height: `${sectionSpacer}px` }} aria-hidden />
+        <div style={{ height: `${sectionSpacer}px` }} aria-hidden="true" />
       </div>
       {footerArea && mode === ObjectPageMode.IconTabBar && !sectionSpacer && (
-        <div className={classNames.footerSpacer} data-component-name="ObjectPageFooterSpacer" aria-hidden />
+        <div className={classNames.footerSpacer} data-component-name="ObjectPageFooterSpacer" aria-hidden="true" />
       )}
       {footerArea && (
         <footer

packages/main/src/components/ObjectPageTitle/index.tsx

@@ -175,7 +175,7 @@ const ObjectPageTitle = forwardRef<HTMLDivElement, ObjectPageTitlePropTypes>((pr
                   <div
                     className={classNames.actionsSeparator}
                     data-component-name="ObjectPageTitleActionsSeparator"
-                    aria-hidden
+                    aria-hidden="true"
                   />
                 )}
                 {!showNavigationInTopArea && (wcrNavToolbar ? wcrNavToolbar : navigationBar)}

packages/main/src/components/ObjectStatus/index.tsx

@@ -200,7 +200,7 @@ const ObjectStatus = forwardRef<HTMLDivElement | HTMLButtonElement, ObjectStatus
   const showEmptyIndicator = emptyIndicator && !children;
   const computedChildren = showEmptyIndicator ? (
     <span
-      aria-hidden={showEmptyIndicator}
+      aria-hidden={showEmptyIndicator ? 'true' : undefined}
       data-component-name="ObjectStatusEmptyIndicator"
       className={classNames.emptyIndicator}
     >