DM Detection not working

**Describe the bug**

DMs to the bot are being processed like any other message.

**To Reproduce**

DM the bot

**Expected behavior**

It should just respond with "Hello!" for now.

**Additional context**

- [ ] Move DM detection to the top of the message received flow
- [ ] Fix DM detection

Start by locating the bot's message-received flow and the existing DM detection, then reproduce the issue by sending the bot a direct message. Done means DMs receive only "Hello!" instead of being processed like other messages, with the detection handled at the intended point in the flow.

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