Remove numbers from documentation filenames in Fleet repo (#4313)

* Renaming files and a lot of find and replace

* pageRank meta tags, sorting by page rank

* reranking

* removing numbers

* revert changing links that are locked to a commit

* update metatag name, uncomment github contributers

* Update basic-documentation.page.js

* revert link change

* more explicit errors, change pageOrderInSection numbers, updated sort

* Update build-static-content.js

* update comment

* update handbook link

* handbook entry

* update sort

* update changelog doc links to use fleetdm.com

* move standard query library back to old location, update links/references to location

* revert unintentional link changes

* Update handbook/community.md

Co-authored-by: Mike Thomas <78363703+mike-j-thomas@users.noreply.github.com>

Co-authored-by: Mike Thomas <78363703+mike-j-thomas@users.noreply.github.com>
Co-authored-by: Mike McNeil <mikermcneil@users.noreply.github.com>

.github/pull_request_template.md

@@ -3,7 +3,7 @@
 If some of the following don't apply, delete the relevant line.
 
 - [ ] Changes file added (for user-visible changes)
-- [ ] Documented any API changes (docs/01-Using-Fleet/03-REST-API.md)
+- [ ] Documented any API changes (docs/Using-Fleet/REST-API.md)
 - [ ] Documented any permissions changes
 - [ ] Added/updated tests
 - [ ] Manual QA for all new/changed functionality