Fix Sonar regex warnings in derivation path handling - #298

Check warning on line 345 in src/app/services/secrets/secrets.service.ts

sonarqubecloud / SonarCloud Code Analysis

Simplify this regular expression to reduce its runtime, as it has super-linear performance due to backtracking.

See more on https://sonarcloud.io/project/issues?id=airgap-it_airgap-vault&issues=AZ9m9_GUBbeMsQgz0dzD&open=AZ9m9_GUBbeMsQgz0dzD&pullRequest=298