feat: add organizations into ecosystem (BE/FE)

[bhavanakarwade]

**User Story:

• As an ecosystem lead, I should be able to add my organizations to my ecosystem.

Backend :

• Develop a POST API to add organizations to the Ecosystem
• Modify a GET API to fetch all organizations by organization role
• Error handling

Frontend:

• Integrate GET API to get a list of owner organizations
• Integrate POST API to add organizations in the ecosystem
• Develop UI to show organization list
• Provide functionality to select multiple organizations on multiple pages

[sayali-chavan96]

Pending Todos:

Backend

• When attempting to add another user's organization to the ecosystem using their organization ID, there is a need for validation. If the provided organization ID does not match the user's own organization ID, the system should return a '403 Forbidden' status code with the message: 'You do not have access'

Frontend

• When multiple organizations are selected to add in the Ecosystem and the page is refreshed, the previously selected checkboxes should be reset

• Error messages should not be displayed after clicking the Refresh button.