chore(docs): clean up and add new content (#15003)

* wip: Install

* wip: sharing

* wip: features

* wip: features

* wip: tags and folder view

* update links

* fix: broken reference to page sections

* pr feedback

* Update docs/docs/overview/comparison.md

Co-authored-by: Daniel Dietzler <36593685+danieldietzler@users.noreply.github.com>

* webp

* webp is glory

* webp is glory

---------

Co-authored-by: Daniel Dietzler <36593685+danieldietzler@users.noreply.github.com>

docs/docs/partials/_mobile-app-login.md

@@ -1,3 +1,3 @@
 Login to the mobile app with the server endpoint URL at `http://<machine-ip-address>:2283/api`
 
-<img src={require('./img/sign-in-phone.jpeg').default} width='50%' title='Mobile App Sign In' />
+<img src={require('./img/sign-in-phone.webp').default} width='50%' title='Mobile App Sign In' />