📦 sync summit world: add `tv-screen/smiling` model entity

[TheAfroOfDoom]

Summary

Syncs the Summit world with the following updates:

• placed the Flowey tv-screen model on the outside of the booth
• took a bit out of the mountainside so the tv-screen model could sit merged into the mountain
• placed some orange wool to mark the edge of our plot

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Reproducing in-game

yarn start sync.summit.down

Preview