Bump tslint in /src/Unosquare.PassCore.Web/ClientApp (#319)

Bumps [tslint](https://github.com/palantir/tslint) from 5.18.0 to 5.19.0.
- [Release notes](https://github.com/palantir/tslint/releases)
- [Changelog](https://github.com/palantir/tslint/blob/master/CHANGELOG.md)
- [Commits](palantir/tslint@5.18.0...5.19.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

src/Unosquare.PassCore.Web/ClientApp/package-lock.json

@@ -35,7 +35,7 @@
         "@types/react-router-dom": "^4.3.4",
         "parcel-bundler": "^1.12.3",
         "parcel-plugin-clean-easy-unsafe": "^1.0.2",
-        "tslint": "^5.18.0",
+        "tslint": "^5.19.0",
         "tslint-react": "^4.0.0",
         "typescript": "^3.5.3"
     }