feat: add new drawer mount points

[debsmita1]

Description

Based on the spike https://docs.google.com/document/d/1nv2ITnWXeGiqjNVCFjhsEPL11M3zjha93y2KdS0ZPz0/edit?usp=sharing , this PR implements the following:
-> Added two new mount points for dynamic plugins:
- application/internal/drawer-state : Exposes the plugin's drawer state (isDrawerOpen, drawerWidth, setDrawerWidth) to RHDH via callback props
- application/internal/drawer-content : Defines the drawer's content component along with configuration options:
id: Unique drawer identifier
resizable: Boolean to enable/disable drawer resizing

Note: The mount points added are for internal use only and are subject to change. These will be updated with the introduction of the new frontend system.

-> ApplicationDrawer Component, which renders all application/internal/drawer-state components, collects drawer states via callback props, and evaluates the open drawer and closes the previously open drawer

New dynamic plugin config

red-hat-developer-hub.backstage-plugin-lightspeed:
      dynamicRoutes:
        - path: /lightspeed
          importName: LightspeedPage
        - path: /lightspeed/conversation/:id
          importName: LightspeedPage
      mountPoints:
        - mountPoint: application/listener
          importName: LightspeedFAB
        - mountPoint: application/provider
          importName: LightspeedDrawerProvider
        - mountPoint: application/internal/drawer-state
          importName: LightspeedDrawerStateExposer
        - mountPoint: application/internal/drawer-content
          importName: LightspeedChatContainer
          config:
            id: lightspeed
            priority: 100
    red-hat-developer-hub.backstage-plugin-quickstart:
            translationResources:
              - importName: quickstartTranslations
                ref: quickstartTranslationRef
            mountPoints:
              - mountPoint: application/provider
                importName: QuickstartDrawerProvider
              - mountPoint: application/internal/drawer-state
                importName: QuickstartDrawerStateExposer
              - mountPoint: application/internal/drawer-content
                importName: QuickstartDrawerContent
                config:
                  id: quickstart
              - mountPoint: global.header/help
                importName: QuickstartButton
                config:
                  priority: 100

Which issue(s) does this PR fix

• Part of https://issues.redhat.com/browse/RHIDP-9381

PR acceptance criteria

Please make sure that the following steps are complete:

• GitHub Actions are completed and successful
• Unit Tests are updated and passing
• E2E Tests are updated and passing
• Documentation is updated if necessary (requirement for new features)
• Add a screenshot if the change is UX/UI related

How to test changes / Special notes to the reviewer

[github-actions]

The image is available at:

• quay.io/rhdh-community/rhdh:pr-3947
• quay.io/rhdh-community/rhdh:pr-3947-7e2010f4

/test e2e-ocp-helm

[github-actions]

The image is available at:

• quay.io/rhdh-community/rhdh:pr-3947
• quay.io/rhdh-community/rhdh:pr-3947-c539d1ee

/test e2e-ocp-helm

[github-actions]

The image is available at:

• quay.io/rhdh-community/rhdh:pr-3947
• quay.io/rhdh-community/rhdh:pr-3947-bec5b873

/test e2e-ocp-helm

[github-actions]

This PR is stale because it has been open 7 days with no activity. Remove stale label or comment or this will be closed in 21 days.

[sonarqubecloud]

Please retry analysis of this Pull-Request directly on SonarQube Cloud

[github-actions]

The image is available at:

• quay.io/rhdh-community/rhdh:pr-3947
• quay.io/rhdh-community/rhdh:pr-3947-9bdf2995

/test e2e-ocp-helm

[debsmita1]

/assign @christoph-jerolimov @rohitkrai03 @HusneShabbir

[HusneShabbir]

/retest

[rohitkrai03]

Overall looks good. Just one small comment.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[HusneShabbir]

Tested locally,
/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: HusneShabbir
Once this PR has been reviewed and has the lgtm label, please ask for approval from christoph-jerolimov. For more information see the Code Review Process.

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[github-actions]

The image is available at:

• quay.io/rhdh-community/rhdh:pr-3947
• quay.io/rhdh-community/rhdh:pr-3947-8ae94c0c

/test e2e-ocp-helm

[HusneShabbir]

/retest

[openshift-ci]

@debsmita1: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-ocp-helm	8ae94c0	link	true	/test e2e-ocp-helm

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