BlurNSFW with DM/Group Chat support

[jakedev796]

Description

Enhanced the BlurNSFW plugin to support blurring images in DMs and group chats. Added a toggle option in settings to enable/disable DM blurring independently of NSFW channel blurring.

Changes

• Added new blur direct message toggle option in settings
• Added DM and group DM detection and blur functionality
• Blur amount settings affect both channel and DM blurring

Testing

Tested functionality in:

• NSFW channels (existing blur working as expected)
• Direct Messages (new blur working with toggle)
• Group DMs (blur working with same toggle as DMs)
• Settings menu:
  • Blur amount slider affecting both NSFW and DM images
  • DM toggle properly enabling/disabling blur in DMs and group chats
  • Settings persisting after Discord restart
• Hover functionality working correctly in all contexts

Originally uploaded this a few hours ago but from testing with another user, they were experiencing crashes where I wasn't. I have since solved those issues.

Apologies for how much the code changed, the original code wasn't very happy with my DM toggle setting.