The pack hosts itself

• New: the drawn dialogs' resource pack is uploaded to ResourcePack AI's free pack host by default (pack.host: upload), so players download it with nothing to open or set up, on any host. It is only uploaded again when it changes, and only the Minecraft client can download it. If the upload fails, the server serves the pack itself until it works.
• A server that set pack.public-host keeps serving the pack itself; any other moves to the pack host on its own. pack.host: serve keeps it on your server.
• Fixed: a pasted pack glyph holding a placeholder now shows the glyph the placeholder picks, in its colours.