Customize home page (#803)

## Description

This PR adds the ability to customize the home page in-app

### Features
- Add, remove, & reorder rows
- Persist the configuration locally
- Save the configuration to the server, allowing to pull down on other
devices
- Adjust view options for rows such as card height, image type,
preferring series images, or aspect ratio (similar to libraries)
- Pull down the web client's home rows (no plugins are supported yet!)
- Preview of the home page which is usable & updated as changes are made

### Row options

These are row types that can be added in-app via the UI:
- Continue watching
- Next up
- Combined continue waiting & next up
- Recently added in a library
- Recently released in a library
- Genres in a library
- Suggestions for a library (movie & TV show libraries only)
- Favorite movies, tv shows, episodes, etc

Additionally, there are more row types that don't have a UI to add them
(yet):
- Simple query to get items from a parent ID such as a collection or
playlist
- Complex query to get arbitrary items via the `/Items` API endpoint

### Dev notes

Settings are loaded in order:
1. Locally saved
2. Remote saved
3. Fallback to default similar to Wholphin's original home rows

The remote saved settings are stored via the display preferences API.

I know some server admins would prefer to push a default setup to their
clients. This PR does not have that ability, but it does define a
straightforward API for defining the settings. Something like the
potential server plugin work started in #625 could be slimmed down to
expose a URL to be added in the load order.

I'm also investigating integration with popular home page plugins to
allow for further customization, but will take more time.

### Related issues
Closes #399
Closes #361
Closes #282
Related to #340

app/src/main/java/com/github/damontecres/wholphin/util/Constants.kt

@@ -34,6 +34,14 @@ val supportedCollectionTypes =
         null, // Mixed
     )
 
+val supportedHomeCollectionTypes =
+    setOf(
+        CollectionType.MOVIES,
+        CollectionType.TVSHOWS,
+        CollectionType.HOMEVIDEOS,
+        null, // Mixed
+    )
+
 val supportedPlayableTypes =
     setOf(
         BaseItemKind.MOVIE,

app/src/main/java/com/github/damontecres/wholphin/util/LoadingState.kt

@@ -1,6 +1,7 @@
 package com.github.damontecres.wholphin.util
 
 import com.github.damontecres.wholphin.data.model.BaseItem
+import com.github.damontecres.wholphin.data.model.HomeRowViewOptions
 
 /**
  * Generic state for loading something from the API
@@ -62,6 +63,7 @@ sealed interface HomeRowLoadingState {
     data class Success(
         override val title: String,
         val items: List<BaseItem?>,
+        val viewOptions: HomeRowViewOptions = HomeRowViewOptions(),
     ) : HomeRowLoadingState
 
     data class Error(