Release 1.18.0

[jaredlockhart]

Welcome Release Captain! ⛵️

• [x] Assign this issue to yourself
• [x] Create 1.19.0 Milestone (due date two weeks from now)
• [x] Move all open tickets in 1.18.0 to 1.19.0
• [x] Close 1.18.0 Milestone
• [x] Pull master
• [x] Ensure yarn test passes
• [x] git tag v1.18.0; git push --tags
• [x] @here deploying delivery-console to stage v1.18.0 https://github.com/mozilla/delivery-console/milestone/7?closed=1 in #normandy
• [x] Quickly verify that stage loads with v1.18.0
• [x] Request ops to deploy in #normandy
• [x] Verify that prod loads with v1.18.0
• [x] Approve and merge all open dependabot PRs
• [x] Create release issue for Release v1.19.0

[rehandalal]

Tag did not get deployed to stage.