perf: replace std.debug.assert with inlined version

See doc comment in `quirks.zig` for reasoning

src/terminal/bitmap_allocator.zig

@@ -1,5 +1,5 @@
 const std = @import("std");
-const assert = std.debug.assert;
+const assert = @import("../quirks.zig").inlineAssert;
 const Allocator = std.mem.Allocator;
 const size = @import("size.zig");
 const getOffset = size.getOffset;