try to change to working directory on startup so assets can be found

src/change_directory.c

@@ -0,0 +1,16 @@
+#include "change_directory.h"
+#include <SDL3/SDL_platform.h>
+
+#if SDL_PLATFORM_LINUX
+#include <unistd.h>
+#elif SDL_PLATFORM_WINDOWS
+#include <direct.h>
+#endif
+
+void change_directory(const char *path) {
+    #if SDL_PLATFORM_LINUX
+    chdir(path);
+    #elif SDL_PLATFORM_WINDOWS
+    _chdir(path);
+    #endif
+}