XWIKI-22484: The alternative for the home link on the logo does not m…

…ean anything (#3510)

* Updated the companylogo template to add a proper text alternative
* Added translations for those text alternatives

(cherry picked from commit 3dfbed1)

xwiki-platform-core/xwiki-platform-flamingo/xwiki-platform-flamingo-skin/xwiki-platform-flamingo-skin-resources/src/main/resources/flamingo/companylogo.vm

@@ -46,7 +46,11 @@
   #end
 #end
 <div id="companylogo">
-  <a href="$!xwiki.getURL($services.wiki.currentWikiDescriptor.mainPageReference)" title="Home" rel="home" #if(!$displayPageHeader)class="navbar-brand"#end>
-    <img src="$!logourl" alt="Wiki Logo"/>
+  <a href="$!xwiki.getURL($services.wiki.currentWikiDescriptor.mainPageReference)" rel="home" ##
+    title="$escapetool.xml($services.localization.render('core.document.header.logo.anchor.text'))" ##
+    #if(!$displayPageHeader)class="navbar-brand"#end>##
+    <span class="sr-only">$services.localization.render('core.document.header.logo.anchor.text')</span>
+    <img src="$!logourl" ##
+      alt="$escapetool.xml($services.localization.render('core.document.header.logo.image.text'))"/>##
   </a>
 </div>

xwiki-platform-core/xwiki-platform-oldcore/src/main/resources/ApplicationResources.properties

@@ -752,6 +752,9 @@ core.footer.modification=Last modified by {0} on {1}
 ## This label is only visible by AT users to help with understanding the meaning of the top section containing
 ## the page title and the info about the last modification of the page.
 core.document.header.info.label=Page header
+## These two text alternatives are only visible by AT users.
+core.document.header.logo.anchor.text=Home
+core.document.header.logo.image.text=Logo of the wiki
 ## This label is only visible by AT users to help with understanding the meaning of the top section containing
 ## the action buttons: 'Edit', 'Create' and 'More Actions'.
 core.document.header.menu.nav.label=Page actions