Create announcements workspace and migrate search module

[kurtaking]

Hey, I just made a Pull Request!

This PR includes the initial announcements workspace via yarn create-workspace, along with the search module from procore-oss.

The remaining plugins will be migrated in individual follow up PRs. I previously tried migrating all plugins at once which created a bloated PR.

Recap

• create new announcements workspace
• migrate the announcements search module
• add myself to codeowners for the workspace

✔️ Checklist

• A changeset describing the change and affected packages. (more info)
• Added or updated documentation
• Tests for new functionality and regression tests for bug fixes
• Screenshots attached (for UI changes)
• All your commits have a Signed-off-by line in the message. (more info)

[backstage-goalie]

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
@backstage-community/plugin-search-backend-module-announcements	workspaces/announcements/plugins/search-backend-module-announcements	none	v0.1.0

[vinzscam]

thank you @kurtaking 🙏
don't forget to add yourself to the CODEOWNERS

[kurtaking]

thank you @kurtaking 🙏 don't forget to add yourself to the CODEOWNERS

Oooh, good catch @vinzscam - added.

[kurtaking]

I've also submitted backstage/community#172.

[awanlin]

Awesome! Thanks @kurtaking

[awanlin]

Ah, we need a changeset

[kurtaking]

Ah, we need a changeset

I meant to include this in the description - my intentions were to migrate all plugins and then release a changeset once we were ready to tell the community to migrate.