reload settings during mod installation

- mods that alter the settings table during installation (ie. for adding hooks) need to have their possible values executed else errors may be logged during the process

ref.
https://github.com/SimpleMachines/SMF2.1/issues/2382

Signed-off-by: -Underdog- github.underdog@gmail.com
remove line break

Signed-off-by: -Underdog- github.underdog@gmail.com
Merge pull request #2396 from Underdog-01/patch-8

reload settings during mod installation