Enhance the Hamburger Menu

In the Hamburger Menu I see
1/ Administer Wiki
2/ Wiki Index . (leads to "Browse Wikis")
=> so there are wikis inside the wiki ?

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Proposal :
Rename "Sub-wiki" terminology by Spaces https://en.wiktionary.org/wiki/space
+ simplify this menu (see attached image)

edit : see attached Hamburger menu proposal