Update audio, add todo item

Organize audio. The sfx are also rearranged.
2 lat temu · 4a6b32256c
--- a/TODO.md
+++ b/TODO.md
@@ -1,3 +1,4 @@
 - [ ] Authentication server, using HTTP dynamic content
  - [ ] server
  - [ ] client (frontend)
 - [ ] Proof-of-concept for fast SVG rendering (we're going to use SVG instead of Spine)
--- a/assets/sfx/weapons/guns/smg-hkmp5a3/c_ready_var0.wav
+++ b/assets/sfx/weapons/guns/smg-hkmp5a3/c_ready_var0.wav
--- a/assets/sfx/weapons/guns/smg-hkmp5k/2_shell_out_var0.wav
+++ b/assets/sfx/weapons/guns/smg-hkmp5k/2_shell_out_var0.wav
--- a/assets/sfx/weapons/guns/smg-hkmp5k/2_shell_out_var1.wav
+++ b/assets/sfx/weapons/guns/smg-hkmp5k/2_shell_out_var1.wav
--- a/assets/sfx/weapons/guns/smg-hkmp5k/2_shell_out_var2.wav
+++ b/assets/sfx/weapons/guns/smg-hkmp5k/2_shell_out_var2.wav
--- a/assets/sfx/weapons/guns/smg-hkmp5k/c_ready_var0.wav
+++ b/assets/sfx/weapons/guns/smg-hkmp5k/c_ready_var0.wav