removed classpath from git and eclipse.prefs and changed pom to update h2 database because of vulnerability in old version + changed scope because test scope lead to build failures in vscode

Resolve "Restore Gitsearch Integration Tests"

See merge request sharing/codeability-sharing-platform!89

# Conflicts:
#   src/main/java/at/ac/uibk/gitsearch/service/mapper/SavedSearchesMapper.java

Frontend tests after jhipster update

See merge request sharing/codeability-sharing-platform!90