Create new announcements workspace - migrate @procore-oss anouncements

[kurtaking]

Hey, I just made a Pull Request!

✔️ 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-announcements-backend	workspaces/announcements/plugins/announcements-backend	none	v0.1.0
@backstage-community/plugin-announcements-common	workspaces/announcements/plugins/announcements-common	none	v0.1.0
@backstage-community/plugin-announcements-node	workspaces/announcements/plugins/announcements-node	none	v0.1.0
@backstage-community/plugin-announcements-react	workspaces/announcements/plugins/announcements-react	none	v0.1.0
@backstage-community/plugin-announcements	workspaces/announcements/plugins/announcements	none	v0.1.0
@backstage-community/plugin-search-backend-module-announcements	workspaces/announcements/plugins/search-backend-module-announcements	none	v0.1.0

[kurtaking]

@marknotfound - you helped with setting up the new front system here. Any idea why I am receiving this error while trying to migrate to the community repo?

[github-actions]

This PR has been automatically marked as stale because it has not had recent activity from the author. It will be closed if no further activity occurs. If the PR was closed and you want it re-opened, let us know and we'll re-open the PR so that you can continue the contribution!