i18n: improve 'Verify' error message, stopgap for #2809 (#5479)
Signed-off-by: Adam Baxter <codeberg@voltagex.org>
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/5479
Reviewed-by: Otto <otto@codeberg.org>
Co-authored-by: voltagex <voltagex@noreply.codeberg.org>
Co-committed-by: voltagex <voltagex@noreply.codeberg.org>