Can't access General Settings with "Manage Settings" permissions

[crcommons]

Expected Behavior

As a user with "Manage Settings" role, I should be able to access settings->general and make changes to the settings

Current Behavior

As a user with "Manage Settings" role, I am unable to accessing settings->general and am instead rerouted to 404

Steps to reproduce

• create a role with "Manage settings"
• go to settings -> general
• see that you cannot access it

[webong]

Hello @Angamanga @crcommons ... help review my PR that should fix this bug #3875 ... Thank you.

[rowasc]

This is in review, just made some comments, thanks again for all your contributions

[Angamanga]

@Obadha2 Could you test in Steve Buscemi?
Test checklist:
With an administrator user

• Create a role with the Manage Settings permission only
• Assign the role to a user
  With a user who has the new role assigned
• login with that user, access the settings page (you should see this page instead of access denied)
• access the general settings
• change a general setting - site name and regenerate API keys
• save
• the settings should save
• log out
• the site name should change to what you assigned to it (check the browser tab and the map view)
• You can check the API key changed in the database, too, or simply reload the settings admin page to see it

[AmTryingMyBest]

QA'd, passes. 👍