Add a new linter that checks that basic usages (those with an constant string) of the `Tr` function in Go and template files are referring to an existing translation value. Add it to the CI stack but not make it fail yet.
Signed-off-by: Ellen Emilia Anna Zscheile <fogti+devel@ytrizja.de>
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/7109
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
Co-authored-by: Ellen Emilia Anna Zscheile <fogti+devel@ytrizja.de>
Co-committed-by: Ellen Emilia Anna Zscheile <fogti+devel@ytrizja.de>
