Merge #4440

4440: Center timer in HUD (fixes #4438) r=heinrich5991 a=def-

![path45](https://user-images.githubusercontent.com/2335377/145616253-46f1f176-c6b8-4efa-9d2b-8e31f80b013c.png)
## Checklist

- [x] Tested the change ingame
- [x] Provided screenshots if it is a visual change
- [x] Tested in combination with possibly related configuration options
- [x] Written a unit test if it works standalone, system.c especially
- [x] Considered possible null pointers and out of bounds array indexing
- [x] Changed no physics that affect existing maps
- [x] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--undefinedbehavioursanitizer-or-valgrinds-memcheck) (optional)


Co-authored-by: def <dennis@felsin9.de>

src/game/client/components/hud.cpp

@@ -127,8 +127,7 @@ void CHud::RenderGameTimer()
 
 		str_time(Time * 100, TIME_DAYS, aBuf, sizeof(aBuf));
 		float FontSize = 10.0f;
-		float w;
-		w = TextRender()->TextWidth(0, 12,
+		float w = TextRender()->TextWidth(0, FontSize,
 			Time >= 3600 * 24 ? "00d 00:00:00" : Time >= 3600 ? "00:00:00" : "00:00",
 			-1, -1.0f);
 		// last 60 sec red, last 10 sec blink