Fixed everyone seeing redundant chat message for fortnite tool upgrade

PaP item no longer appears in the zombie buy menu (even though you cannot buy it)

- The Pack-a-Punch is now re-buyable
- The Remote Sticky Bomb upgrade has more messages to guide the user in how it works
- Completely re-worked the invincibility potion upgrade, it now turns into a "Shield potion"
- The doncombine upgrade now plays louder sound effects
- The sounds from the barnacle upgrade no longer loop
- You now take reduced damage while in the upgraded airboat, rather than none


- Fixed the Pack-a-Punch item icon not working with my icons pack
- Fixed being able to upgrade a weapon that already has its upgrade applied, doing nothing
- Fixed the remote sticky bomb upgrade disappearing if you right-click without using its effect first
- Fixed a couple of centre screen messages that weren't supposed to be shown to all players, like the artillery cannon upgrade
- Hopefully fixed the music for the artillery cannon upgrade not being made loud enough when multiple upgraded cannons are placed at the same time

Added separate options menu openable via "/papop" chat message for TTT2 to bypass lack of support for F1 menu

- Fixed trying to apply generic upgrades to grenades

- Added an upgrade for:
- Homerun bat:
https://steamproxy.com/sharedfiles/filedetails/?id=648957314

- Red matter bomb:
https://steamproxy.com/sharedfiles/filedetails/?id=1461095720

- Fortnite building tool:
https://steamproxy.com/sharedfiles/filedetails/?id=1433010063

- The Jetgun:
https://steamproxy.com/sharedfiles/filedetails/?id=2252594978

- Fire dash:
https://steamproxy.com/sharedfiles/filedetails/?id=2966658338

Fixed lua error with minecraft potion upgrades

Increased the default value of pap_potion_strength_other_player_secs to 10

Added upgrades to the Minecraft potions:

https://steamproxy.com/sharedfiles/filedetails/?id=2593566065

Added upgrade for the lift grenade and the zap grenade:
https://steamproxy.com/sharedfiles/filedetails/?id=2958417945
https://steamproxy.com/sharedfiles/filedetails/?id=3014979716

Fixed conflicting upgrade IDs