Expand Error Handler

[Savant-Dev]

This should ideally handle all permission errors, notifying the user of the following:

• The command that failed
• The reason the command failed
• A solution to avoid failure, if applicable

These responses should be short and to the point, so I don't believe there is a need for embeds.

Assessment for commands.CheckFailure should occur last, as most errors we will be checking for are inherited from this.