radical re-formatting 0/3: Alphabetic headers

Except stated otherwise in comment.

Fixes coding style. Formatting commits suck, incoherent coding style
sucks more.
https://suckless.org/coding_style/

components/keymap.c

@@ -5,8 +5,8 @@
 #include <X11/XKBlib.h>
 #include <X11/Xlib.h>
 
-#include "../util.h"
 #include "../slstatus.h"
+#include "../util.h"
 
 static int
 valid_layout_or_variant(char *sym)