Minor refactors and cleanups

src/engine/VkAllocator.zig

@@ -35,7 +35,7 @@ pub fn init(allocator: std.mem.Allocator) !*VkAllocator {
 }
 
 pub fn deinit(self: *VkAllocator) void {
-    std.log.debug("Deinitializing {*}", .{self});
+    std.log.scoped(.deinit).debug("Deinitializing {*}", .{self});
     if (self.allocated_bytes > 0) {
         log.warn("{d} byte(s) still allocated while deinitializing", .{self.allocated_bytes});
     }