Major refactor: split codebase into multiple files

Now for the fun part: will this compile?

Sources/Patches.h

@@ -0,0 +1,27 @@
+#import "../Tweaks/YouTubeHeader/YTCommonColorPalette.h"
+#import "uYouPlus.h"
+
+// Prevent uYou player bar from showing when not playing downloaded media
+@interface PlayerManager : NSObject
+- (float)progress;
+@end
+
+// iOS 16 uYou crash fix - @level3tjg: https://github.com/qnblackcat/uYouPlus/pull/224
+@interface OBPrivacyLinkButton : UIButton
+- (instancetype)initWithCaption:(NSString *)caption
+                     buttonText:(NSString *)buttonText
+                          image:(UIImage *)image
+                      imageSize:(CGSize)imageSize
+                   useLargeIcon:(BOOL)useLargeIcon
+                displayLanguage:(NSString *)displayLanguage;
+@end
+
+// uYouLocal fix
+// @interface YTLocalPlaybackController : NSObject
+// - (id)activeVideo;
+// @end
+
+// uYou theme fix
+// @interface YTAppDelegate ()
+// @property(nonatomic, strong) id downloadsVC;
+// @end