puzzles: resync with upstream

This brings the puzzles source in sync with Simon's branch, commit fd304c5
(from March 2024), with some added Rockbox-specific compatibility changes:

https://www.franklinwei.com/git/puzzles/commit/?h=rockbox-devel&id=516830d9d76bdfe64fe5ccf2a9b59c33f5c7c078

There are quite a lot of backend changes, including a new "Mosaic" puzzle.
In addition, some new frontend changes were necessary:

- New "Preferences" menu to access the user preferences system.
- Enabled spacebar input for several games.

Change-Id: I94c7df674089c92f32d5f07025f6a1059068af1e

apps/plugins/puzzles/resync.sh

@@ -19,7 +19,7 @@ then
 fi
 
 echo "=== POTENTIALLY DANGEROUS OPERATION ==="
-echo "Are you sure you want to remove all files in src/?"
+echo "Are you sure you want to remove all files in src/ and help/?"
 echo -n "If so, type \"yes\" in all caps: "
 read ans
 if [ "YES" == $ans ]
@@ -30,8 +30,9 @@ then
     rm -rf src
     echo "[2/5] Copying new sources"
     mkdir src
-    cp -r "$1"/{*.c,*.h,*.R,*.but,LICENCE,README} src
+    cp -r "$1"/{*.c,*.h,*.but,LICENCE,README,CMakeLists.txt} src
     echo "[3/5] Regenerating help"
+    rm -rf help
     ./genhelp.sh
 
     echo "[4/5] Staging for commit"