Reduce dependence on tb_cell and tb_cell_buffer()

Signed-off-by: AnErrupTion <anerruption@disroot.org>

src/main.zig

@@ -400,7 +400,7 @@ pub fn main() !void {
 
                     for (clock_str, 0..) |c, i| {
                         const clock_cell = bigclock.clockCell(animate, c, buffer.fg, buffer.bg);
-                        bigclock.alphaBlit(buffer.buffer, xo + i * (bigclock.WIDTH + 1), yo, buffer.width, buffer.height, clock_cell);
+                        bigclock.alphaBlit(xo + i * (bigclock.WIDTH + 1), yo, buffer.width, buffer.height, clock_cell);
                     }
                 }