Merge branch '513631-convert-webhooks-settings-page-to-vue-and-rearrange-url-masking' into 'master' 

Simplify URL masking UI for project and group webhooks

See merge request !189235



Merged-by: Andrew Fontaine <[email protected]>
Approved-by: Chad Lavimoniere <[email protected]>
Approved-by: Ashraf Khamis <[email protected]>
Approved-by: Shane Maglangit <[email protected]>
Approved-by: Andrew Fontaine <[email protected]>
Reviewed-by: Justin Ho Tuan Duong <[email protected]>
Reviewed-by: Ashraf Khamis <[email protected]>
Reviewed-by: Shane Maglangit <[email protected]>
Co-authored-by: Justin Ho Tuan Duong <[email protected]>