tdf#84102: Expose duplicated "level" accessible attribute.

There is no standard for this so some ATs will expect "level" and
others "heading-level"; we will expose both.

Change-Id: Ia935f7efdea11dc9be66fd9a54e1df0432c74662

sw/source/core/access/accpara.cxx

@@ -3877,6 +3877,8 @@ uno::Any SAL_CALL SwAccessibleParagraph::getExtendedAttributes()
         strHeading += OUString::number(nHeadingLevel, 10);
     strHeading += ";";
 
+    strHeading += strHeading.copy(8); // tdf#84102: expose the same attribute with the name "level"
+
     Ret <<= strHeading;
 
     return Ret;