FULL clientside posts implementation, remove votes, and cleanups

[Zekiah-A]

• Fully removed all VOTES related code, trimming over 100 bytes off info packet
• Basic implementation of baseline features for clientside post viewing
• Client cleanups, keybinds, tab accessibility and chatpanel fixes

[Zekiah-A]

• Start using r-copy-post component, implement r-user-tooltip component for displaying basic canvas user / account user information

[Zekiah-A]

• Added attachments, multiple attachments will tile nicely (up to 4 attachments officially, afterwards it becomes a bit cursed)
• Clicking an an attachment will also display it with the image view dialog
• Bounds check PLACERS packet on server

[Zekiah-A]

This is basically feature complete as an initial baseline implementation, waiting on a few patches for RplaceServer before merge