Major refactor: split codebase into multiple files

Now for the fun part: will this compile?

Sources/Patches.xm

@@ -1,4 +1,4 @@
-#import "uYouPlus.h"
+#import "Patches.h"
 
 # pragma mark - YouTube patches
 
@@ -95,6 +95,13 @@
 }
 %end
 
+// Fix navigation bar showing a lighter grey with default dark mode - https://github.com/therealFoxster/uYouPlus/commit/8db8197
+%hook YTCommonColorPalette
+- (UIColor *)brandBackgroundSolid {
+    return self.pageStyle == 1 ? [UIColor colorWithRed:0.05882352941176471 green:0.05882352941176471 blue:0.05882352941176471 alpha:1.0] : %orig;
+}
+%end
+
 %ctor {
     %init;
     if (@available(iOS 16, *)) {