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/FAQ.mdx

@@ -202,7 +202,7 @@ Immich uses CLIP models. An ML model converts each image to an "embedding", whic
 
 ### How does facial recognition work?
 
-See [How Facial Recognition Works](/docs/features/facial-recognition#How-Facial-Recognition-Works) for details.
+See [How Facial Recognition Works](/docs/features/facial-recognition#how-facial-recognition-works) for details.
 
 ### How can I disable machine learning?
 
@@ -224,7 +224,7 @@ No, this is not supported. Only models listed in the [Hugging Face][huggingface]
 
 ### I want to be able to search in other languages besides English. How can I do that?
 
-You can change to a multilingual CLIP model. See [here](/docs/features/smart-search#CLIP-model) for instructions.
+You can change to a multilingual CLIP model. See [here](/docs/features/searching#clip-model) for instructions.
 
 ### Does Immich support Facial Recognition for videos?
 
@@ -235,7 +235,7 @@ Scanning the entire video for faces may be implemented in the future.
 
 No.
 :::tip
-You can use [Smart Search](/docs/features/smart-search.md) for this to some extent. For example, if you have a Golden Retriever and a Chihuahua, type these words in the smart search and watch the results.
+You can use [Smart Search](/docs/features/searching.md) for this to some extent. For example, if you have a Golden Retriever and a Chihuahua, type these words in the smart search and watch the results.
 :::
 
 ### I'm getting a lot of "faces" that aren't faces, what can I do?