Better collection pages including more view options (#1137)

## Description
This is a large update to the collection page!

- Show the collection's details including overview & backdrop
- Separate collection by type (Movies, TV, etc) into rows
- View options are now shared across all collections
- Filter & sort are still saved per collection

By default, the collection will be separated by type, but there is a
view option to restore the combined grid.

### Related issues
Closes #527 
Closes #1088
Fixes
https://github.com/damontecres/Wholphin/issues/877#issuecomment-3889013124
Related to #737

### Testing
Emulator mostly

## Screenshots
![collection_page
Large](https://github.com/user-attachments/assets/2b9a8740-5610-491a-b139-018dabd5f2f1)

### Separated types into rows
![collection_rows
Large](https://github.com/user-attachments/assets/34556f64-6089-4d65-b243-6df01bae5423)

### Combined type into grid
![collection_grid
Large](https://github.com/user-attachments/assets/feea14ef-2b7a-4c09-bba7-d146ec92eb83)

## AI or LLM usage
None

app/src/main/res/values/strings.xml

@@ -746,5 +746,6 @@
     <string name="visualizer_rationale">Visualizing the currently playing audio requires permission to record audio.</string>
     <string name="continue_string">Continue</string>
     <string name="select_all">Select all</string>
+    <string name="separate_types">Separate types</string>
 
 </resources>