Add name for home breadcrumb in filepicker

[Pytal]

• For [BITV] 9.1.1.1a/3.1 - Modal Dialog "Choose Target Folder" - The Home button lacks an alternative text. An empty a-element without a href attribute was used, placed within a div element with tabindex="0". (2) #36714

Summary

Add name for the home breadcrumb shown below

This can be read by screen readers

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[Pytal]

/backport to stable25

[szaimen]

Fine by me then but didnt test