Add looks_like to bottle_bathroom

[Faalagorn]

Summary

None

Purpose of change

#51885 added more bathroom items including shampoo bottle. This is to provide a placeholder for tilesets that don't have correct sprites yet. This stemmed from discussion in Cataclysm Tileset Project about plastic bottles having no images, which turned to be plastic bottles out of the shampoos etc.

Describe the solution

Similar to my #54696 for meth, add looks_like to a regular plastic bottle (which is similar enough and serves a similar purpose, it even have the same ASCII art)

Describe alternatives you've considered

Draw a sprite for an item, there is one ready for Ultica as of writing added on the Cataclysm Tileset Project by a new contributor fvck censorship#1482, thanks! Still having looks_like for other tiles seems to be not a bad idea IMO.

Testing

Compiled the game, it seems to appear correctly. Here's how it looks for Ultica et al. before fvck censorship#1482's bottle will be added.
Before:

After:

Additional context