tdf#154932 - A11Y sidebar: fix warning about missing media object description

Add media graphic object to "Go to" and "Fix" functions.

Change-Id: I796ce53605e5d8d10558494a87b987443ad918ba
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/152695
Tested-by: Jenkins
Reviewed-by: Samuel Mehrbrodt <samuel.mehrbrodt@allotropia.de>
diff --git a/sw/source/core/access/AccessibilityCheck.cxx b/sw/source/core/access/AccessibilityCheck.cxx
index 1766052..58e3fe50 100644
--- a/sw/source/core/access/AccessibilityCheck.cxx
+++ b/sw/source/core/access/AccessibilityCheck.cxx
@@ -1355,7 +1355,8 @@ void AccessibilityCheck::checkObject(SdrObject* pObject)
        lclAddIssue(m_aIssueCollection, SwResId(STR_FLOATING_TEXT));

    if (pObject->GetObjIdentifier() == SdrObjKind::CustomShape
        || pObject->GetObjIdentifier() == SdrObjKind::Text)
        || pObject->GetObjIdentifier() == SdrObjKind::Text
        || pObject->GetObjIdentifier() == SdrObjKind::Media)
    {
        OUString sAlternative = pObject->GetTitle();
        if (sAlternative.isEmpty())