Save bytes, add screenshots into main and more

- Also run script on bootup if a script called startup.te is found on the root of the sd
- Saved bytes by just disabling making exfat partitions, lol

source/fs/fstypes.h

@@ -22,4 +22,6 @@ typedef struct {
         };
         u16 sizeUnion;
     };
-} FSEntry_t;
+} FSEntry_t;
+
+#define newFSEntry(filename) (FSEntry_t) {.name = filename}