[OCM] Add backstage app and backend to the workspace

[invincibleJai]

Resolves:
https://issues.redhat.com/browse/RHIDP-5802

Description:

Add backstage app and backend to the workspace

Screenshots:

How to test:

1. run cd workspaces/ocm
2. Update the config for OCM as below

  providers:
    ocm:
      env: # Key is reflected as provider ID. Defines and claims plugin instance ownership of entities
        name: OCP
        url: https://127.0.0.1:59002
        serviceAccountToken: ${K8S_SERVICE_ACCOUNT_TOKEN}
        skipTLSVerify: true

3. run yarn install
4. run yarn dev

✔️ 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
app	workspaces/ocm/packages/app	none	v0.0.0
backend	workspaces/ocm/packages/backend	none	v0.0.0
@backstage-community/plugin-ocm	workspaces/ocm/plugins/ocm	patch	v5.3.1

[rohitkrai03]

@invincibleJai FYI, I've been seeing similar type error while trying to add backstage app for Insights in #2874. Haven't been able to figure out a fix for it though.

[invincibleJai]

@invincibleJai FYI, I've been seeing similar type error while trying to add backstage app for Insights in #2874. Haven't been able to figure out a fix for it though.

@rohitkrai03 it's failing for octokit for me and this is not a direct dependency so for now, I have disabled the tsc check on libraries

"tsc:full": "tsc --skipLibCheck true --incremental false",

[debsmita1]

Able to start the ocm plugin

/lgtm