Move PROD_TEST_MIGRATION_RECOVERY.md to DEPLOYMENT.md and improve all documentations

[mrceyhun]

• Documentation is updated in https://cmsmonit-docs.web.cern.ch/cms-htcondor-es/ with the commit
• Updated https://github.com/dmwm/cms-htcondor-es/wiki/Filebeat-Logstash-setup content to point correct documentation which is improved version of previous one.

[leggerf]

@mrceyhun can you also pls update links to opensearch in https://cmsmonit-docs.web.cern.ch/Kibana/Kibana/