main: Increase FD limit

This defaults to 1024, which is tiny, but is a requirement
for processes using the deprecated `select` function.

We must reset this back whenever we fork to start a new process,
as this is inherited, and breaks applications using `select` otherwise.

Signed-off-by: Joshua Ashton <joshua@froggi.es>

src/main.c

@@ -9,6 +9,7 @@
 #include "theme.h"
 #include "xbm/xbm.h"
 #include "menu/menu.h"
+#include "common/fd_util.h"
 
 struct rcxml rc = { 0 };
 
@@ -85,6 +86,8 @@ main(int argc, char *argv[])
 		exit(EXIT_FAILURE);
 	}
 
+	increase_nofile_limit();
+
 	struct server server = { 0 };
 	server_init(&server);
 	server_start(&server);