Fix: fix issue #22 Address with severe security check issues

[PaperStrange]

• Dependabot cannot update nth-check to a non-vulnerable version
  The latest possible version that can be installed is 1.0.2 because of the following conflicting dependencies:

react-scripts@5.0.1 requires nth-check@^1.0.2 via a transitive dependency on css-select@2.1.0
No patched version available for nth-check

• PostCSS line return parsing error
  Upgrade postcss to fix 1 Dependabot alert in package-lock.json
  Upgrade postcss to version 8.4.31 or later

• Potential file system race condition
  scripts/utils/test-script-template.js:127
  scripts/generate-keys.js:92
  server/utils/vaultService.js:94
  Often it is necessary to check the state of a file before using it. These checks usually take a file name to be checked, and if the check returns positively, then the file is opened or otherwise operated upon.
  However, in the time between the check and the operation, the underlying file referenced by the file name could be changed by an attacker, causing unexpected behavior.

• User-controlled bypass of security check
  server/routes/emails.js:24
  server/middleware/authMiddleware.js:124
  Using user-controlled data in a permissions check may allow a user to gain unauthorized access to protected functionality or data.

• Remote property injection
  server/utils/tokenProvider.js:166
  Dynamically computing object property names from untrusted input may have multiple undesired consequences. For example, if the property access is used as part of a write, an attacker may overwrite vital properties of objects, such as proto. This attack is known as prototype pollution attack and may serve as a vehicle for denial-of-service attacks. A similar attack vector, is to replace the toString property of an object with a primitive. Whenever toString is then called on that object, either explicitly or implicitly as part of a type coercion, an exception will be raised.

• security scan
  Missing download info for lirantal/lockfile-lint-action@master

• build error
  AnalyticsService.js: Unexpected token (480:5)

[PaperStrange]

Merge with issue closed