new textures for potions and books

adding new textures to potions and books
this will make it easier to identify them at a glance both in the inventory and in a frame.

https://x.com/Shrimpsnail1/status/1833663735711338640 

https://x.com/hidyk_official/status/1877235530980553135/photo/2 

https://x.com/SmollDave/status/1827860184946946361 

these are very good examples and I personally love them 
(maybe they stand out from the normal in minecraft and if they are added it doesn't look like something vanilla but it has to have a new look and not be pigeonholed in always following textures that personally seem to me already old)