docs(lifecycle): Update component lifecycle docs
Related MRs:
- Removes component lifecycle docs from gitlab-ui in order to keep docs in one place gitlab-org/gitlab-ui!2211 (merged)
- Adds the "Component" issue template to GitLab UI gitlab-org/gitlab-ui!2212 (merged)
- Adds the "Component documentation" issue template to Pajamas !2379 (merged)
- Cross links issue templates !2380 (merged)
Edited by Taurie Davis