Move components into dedicated subdirectory

This brings us a lot more tidiness.

components/keyboard_indicators.c

@@ -0,0 +1,30 @@
+/* See LICENSE file for copyright and license details. */
+#include <err.h>
+#include <X11/Xlib.h>
+
+#include "../util.h"
+
+const char *
+keyboard_indicators(void)
+{
+	Display *dpy = XOpenDisplay(NULL);
+	XKeyboardState state;
+
+	if (dpy == NULL) {
+		warnx("XOpenDisplay failed");
+		return NULL;
+	}
+	XGetKeyboardControl(dpy, &state);
+	XCloseDisplay(dpy);
+
+	switch (state.led_mask) {
+		case 1:
+			return "c";
+		case 2:
+			return "n";
+		case 3:
+			return "cn";
+		default:
+			return "";
+	}
+}