Updating how categories are organized on Meta

[ToddZ]

@Canapin

Autocompletion for the categories we want to link in a post or in search can create very long strings:

Community Building > Data & reporting, Documentation > Migrating to Discourse, News and Events > Forum summaries, etc.

This open UX request about that could maybe use a bump:
Can we make inline links to subcategories more concise? - Contribute / UX