refactor: update botstrap to be more beginner-friendly (#3417)

- provide completion message
- silence httpcore logger
- filter out botcore's warning for patching send_typing
- use short url for contributing link
- only use logging.warning and up for things that need user action
- use logging.fatal when exiting due to error
- upgrade application flags if intents weren't enabled
- provide an invite link if the bot isn't in the configured guild
- add audit log reason to requests that support it
- sync emojis to the test guild
- provide a helpful error message when BOT_TOKEN is not set, use pydantic for env management
- remove special forum channel handling
- fix: add utf8 encoding for windows support

Author: onerandomusername

bot/constants.py

@@ -264,7 +264,7 @@ class Webhook(BaseModel):
     channel: int
 
 
-class _Webhooks(EnvConfig, env_prefix="webhooks_"):
+class _Webhooks(EnvConfig, env_prefix="webhooks_", nested_model_default_partial_update=True):
 
     big_brother: Webhook = Webhook(id=569133704568373283, channel=Channels.big_brother)
     dev_log: Webhook = Webhook(id=680501655111729222, channel=Channels.dev_log)