Increase the tolerance for finding degenerated states for dipole matrix elements.
Description
Increase the tolerance for finding degenerated states for dipole matrix elements. Otherwise generated states are found not to be degenerated, leading to meaningless values of dipole matrix elements.
News snippet
Increase the tolerance for finding degenerated states for dipole matrix elements.
Checklist
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I have checked that my code follows the Octopus coding standards -
I have added tests for all the new features added in this request.