fix(label): allow to use spaces inside the labels (#199)

* chore(git): ignore .idea folder to avoid adding WebStorm files

* test(jest): find all spec files as well

* refactor(labels): create a dedicated function to parse the labels

at first I thought that the parseCommaSeparatedString method was causing the issue so I move it to a dedicated file to test it since it was private
also because I think that this repo could have more clean code and code splitting
anyway this was not the root of the #98 issue :/

* fix(label): allow to use spaces inside the labels

* docs(isLabeled): add JSDoc

* chore(npm): add lint:fix script

jest.config.js

@@ -2,10 +2,10 @@ module.exports = {
   clearMocks: true,
   moduleFileExtensions: ['js', 'ts'],
   testEnvironment: 'node',
-  testMatch: ['**/*.test.ts'],
+  testMatch: ['**/*.test.ts', '**/*.spec.ts'],
   testRunner: 'jest-circus/runner',
   transform: {
     '^.+\\.ts$': 'ts-jest'
   },
   verbose: true
-}
+};