Ability to change the Organization URL path

Problem

Users might want to change the Organization path. We need a section in the settings to allow them to do that.

Design

Validation

• Errors
  • Organization URL is too short (minimum is 2 characters)
  • Organization URL has already been taken

Proposal

• Add an Advanced section to the Organization settings
• Add a section to Change Organization URL to the Advanced section
• The changing path functionality should work similar to the way it works for groups and projects

Engineering guide

1. Create new component in app/assets/javascripts/organizations/settings/general/components
2. Add new component to app/assets/javascripts/organizations/settings/general/components/app.vue
3. Call API to change URL. Display error inline if there is an error. Display success alert on success.