Add support for viewing photos in photo albums (#703)

## Description
Add support for viewing photos in photo albums

### Features
- Browse and view albums & photos
- View an album as a slideshow
- Show overlay with photo details and controls
- Rotate, zoom, & pan photos
- Apply basic filters to photos or albums such as contrast, saturation,
red/green/blue, etc
- Setting to include video clips during slideshows

### Controls
- D-Pad left or right: scroll between photos in album
- Hold D-Pad up or down: zoom in or out of the current photo
- D-Pad left/right/up/down, while zoomed: pan around photo
- Back, while zoomed: revert the zoom
- Otherwise: show photo overlay

### Related issues
Closes #458
Closes #634

### Screenshots
#### Overlay
![photo_overlay
Large](https://github.com/user-attachments/assets/b44ed876-d8bd-4f75-aa1e-4106c2edb2f7)

#### Applying filters
![photo_filters
Large](https://github.com/user-attachments/assets/1379978a-b27c-47ac-80af-f7bb6a2177df)

app/src/main/proto/WholphinDataStore.proto

@@ -160,6 +160,11 @@ message AdvancedPreferences {
   int64 image_disk_cache_size_bytes = 1;
 }
 
+message PhotoPreferences{
+  int64 slideshow_duration = 1;
+  bool slideshow_play_videos = 2;
+}
+
 message AppPreferences {
   // The currently signed in server and user IDs, mostly for restoring a session
   string current_server_id = 1;
@@ -175,4 +180,5 @@ message AppPreferences {
   bool debug_logging = 9;
   AdvancedPreferences advanced_preferences = 10;
   bool sign_in_automatically = 11;
+  PhotoPreferences photo_preferences = 12;
 }