Release v0.9.18

• rename problem_count -> log_count, update makefile
• adjust earliest dates of ard and zdf
• client dep npm update
• clean up default oerc configuration files
• improve docker-compose files, use newer container images
• ng update and remove deploy-url from client build, remove angular default readme
• Update README with docker-compose info, small fixes, go mod download and tidy
• revert ci postgres version change, add more golang versions to gitlab runner
• add release github workflow draft
• change dockerfiles to multistage build from source