Add config option for afk kick in char menu

[Z3rio]

Describe Pull request This PR just adds an Config option to decide if players which are AFK in the character menu should be kicked or not.

If your PR is to fix an issue mention that issue here https://github.com/qbcore-framework/qb-multicharacter/issues/207

Questions (please complete the following information):

• Have you personally loaded this code into an updated qbcore project and checked all it's functionality?no

  no

• Does your code fit the style guidelines?

  yes

• Does your PR fit the contribution guidelines?

  yes

[Z3rio]

The linting issues doesnt seem to be caused by this PR as far as I know