feat: add theme and angular material 😍

[peterjokumsen]

Description 📝

Created shared-styles lib to contain theme for any applications in the mono-repo.

[nx-cloud]

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[codecov]

Codecov Report

Merging #41 (4133ecc) into main (c3db8da) will not change coverage.
The diff coverage is 100.0%.

Additional details and impacted files