b4045e997f
Adds JavaScript validation for group path editing
## What does this MR do?
- Prevents group_edit form submission when special characters are included in the new group name
- Enhances gl_field_errors to support this use case and be more re-usable.
## Are there points in the code the reviewer needs to double check?
**The implementation of validation is here:
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|---|---|---|
| .. | ||
| bin | ||
| config | ||
| controllers | ||
| factories | ||
| features | ||
| finders | ||
| fixtures | ||
| helpers | ||
| initializers | ||
| javascripts | ||
| lib | ||
| mailers | ||
| models | ||
| policies | ||
| requests | ||
| routing | ||
| services | ||
| support | ||
| tasks/gitlab | ||
| uploaders | ||
| views | ||
| workers | ||
| factories_spec.rb | ||
| rails_helper.rb | ||
| rake_helper.rb | ||
| simplecov_env.rb | ||
| spec_helper.rb | ||
| teaspoon_env.rb | ||