Bug: Update schema.graphql file to include new changes

[meetulr]

Describe the bug
The file "schema.graphql" was not updated in #1648 to reflect the changes that were made with that PR.

Expected behavior
It should include all the types, queries and mutations for new changes.

Additional details
This PR just fixes this bug by making "schema.graphql" up to date.

[github-actions]

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[meetulr]

@Cioppolo14 as discussed, please assign me so I can raise a PR.