NGSTACK-957 read and output stderr from eslint and prettier

[amalija-ramljak]

Changes

• original eslint and prettier hooks were missing the stderr from the commands, which leads to confusion when it throws an error due to node version
• error is displayed like in HGSTACK-938 new hooks #14

Testing

• use wrong node version from the one defined in project
• add a test change to and stage a js file
• add JSLinter to pre-commit hooks
• run git commit - should see error with node version being wrong (expected version...)
• do the same with JSPrettier

minimal adding of hooks to pre-commit

{
    "action": "\\Netgen\\GitHooks\\Action\\JSLinter",
    "options": {
        "excluded_files": []
    }
},
{
    "action": "\\Netgen\\GitHooks\\Action\\JSPrettier",
    "options": {
        "excluded_files": []
    }
},

[emodric]

Needs CS Fixer.

[emodric]

Thanks @amalija-ramljak !