Enable all redirects migrated from "my_redirects"

The active flag in tx_myredirects_domain_model_redirect has a completely different meaning than the disabled flag of sys_redirects; the former is set automatically depending on the redirect health by the related scheduler task and cannot be changed by editors. The latter is set manually and willingly by editors.

The important point: inactive redirects in "my_redirects" are still working while disabled TYPO3 redirects are not. Thus we must ignore this flag and import all redirects as enabled.