Refactor dashboard example

src/fs.h

@@ -40,3 +40,7 @@ void mg_fs_close(struct mg_fd *fd);
 char *mg_file_read(struct mg_fs *fs, const char *path, size_t *size);
 bool mg_file_write(struct mg_fs *fs, const char *path, const void *, size_t);
 bool mg_file_printf(struct mg_fs *fs, const char *path, const char *fmt, ...);
+
+// API for the embedded (packed) filesystem
+const char *mg_unpack(const char *path, size_t *size, time_t *mtime);
+const char *mg_unlist(size_t no);

src/fs_packed.c

@@ -7,9 +7,6 @@ struct packed_file {
   size_t pos;
 };
 
-const char *mg_unpack(const char *path, size_t *size, time_t *mtime);
-const char *mg_unlist(size_t no);
-
 #if MG_ENABLE_PACKED_FS
 #else
 const char *mg_unpack(const char *path, size_t *size, time_t *mtime) {