~/.config/dwm/config.h: Fix dwm compilation

.config/dwm/config.h

static const char col_gray3[]       = "#bbbbbb";
static const char col_gray4[]       = "#eeeeee";
static const char col_cyan[]        = "#005577";
static const char *colors[SchemeLast][3]      = {
static const char *colors[][3]      = {
	/*               fg         bg         border   */
	[SchemeNorm] = { col_gray3, col_gray1, col_gray2 },
	[SchemeSel] =  { col_gray4, col_cyan,  col_cyan  },