Subtask to move `design.wikimedia.org` microsite to Kubernets wikikube.
Migration checklist (see complete steps [here](https://wikitech.wikimedia.org/wiki/Miscweb/Kubernetes_migration_steps)):
[x] Copy repo to GitLab:
[x] ~~https://gerrit.wikimedia.org/r/plugins/gitiles/design/style-guide/ (deployed by scap)~~ will be decomissioned
[x] https://gerrit.wikimedia.org/r/plugins/gitiles/design/strategy/ -> https://gitlab.wikimedia.org/repos/sre/miscweb/design-strategy
[x] https://gerrit.wikimedia.org/r/plugins/gitiles/design/landing-page/ -> https://gitlab.wikimedia.org/repos/sre/miscweb/design-landing-page
[x] ~~https://gerrit.wikimedia.org/r/plugins/gitiles/design/codex/ ~~ not on miscweb
[x] https://gerrit.wikimedia.org/r/plugins/gitiles/design/blog/ -> https://gitlab.wikimedia.org/repos/sre/miscweb/design-blog
[x] Setup GitLab CI pipeline
[x] Deploy service to Kubernetes
[x] switch traffic
[] cleanup service in legacy systems
[x] archive old repositories