mgr/dashboard: fix frontend deps' vulnerabilities

mgr/dashboard: fix frontend deps' vulnerabilities

- Remove npm-force-resolutions: no resolution needed anymore and this is modifying package-lock.json every time it is run (striping last empty line).
- Add .npmrc: save exact version by default; do not launch audit report when installing.

Fixes: https://tracker.ceph.com/issues/48005
Signed-off-by: Alfonso Martínez <almartin@redhat.com>
(cherry picked from commit f08c0db689dc6bd29323ac03a91c69e2fe7365a2)

 Conflicts:
	src/pybind/mgr/dashboard/frontend/package-lock.json
    - Accept version from master branch.
	src/pybind/mgr/dashboard/frontend/package.json
    - Accept version from master branch.