don't add trailing = when in urlParamsToArray function

See merge request gitlab-org/gitlab-ce!21179

Fix NamespaceUploader.base_dir for remote uploads

See merge request gitlab-org/gitlab-ce!21308

Added file templates to the Web IDE

Closes #47947

See merge request gitlab-org/gitlab-ce!21245

Import common metrics into database.

Closes gitlab-ee#6948

See merge request gitlab-org/gitlab-ce!21459

Clarify CodeSandbox works for private projects

See merge request gitlab-org/gitlab-ce!21579

improved variable & prop names

fixed content not updating in editor when changing template