Adjust configurations according to Slack discussion follow-up

[krompaco]

Change to either use error or off (no warnings anymore).

Less noise in output:

   "knowledgeData": [
      {
         "url": "https://krompaco.nu",
         "group": "krompaco.nu",
         "issues": {
            "no-eval": {
               "test": "javascript",
               "rule": "no-eval",
               "category": "security",
               "severity": "resolved",
               "resources": [
                  "https://eslint.org/docs/latest/rules/no-eval"
               ],
               "subIssues": []
            },
            "no-implied-eval": {
               "test": "javascript",
               "rule": "no-implied-eval",
               "category": "security",
               "severity": "resolved",
               "resources": [
                  "https://eslint.org/docs/latest/rules/no-implied-eval"
               ],
               "subIssues": []
            },
            "no-script-url": {
               "test": "javascript",
               "rule": "no-script-url",
               "category": "security",
               "severity": "resolved",
               "resources": [
                  "https://eslint.org/docs/latest/rules/no-script-url"
               ],
               "subIssues": []
            },
            "no-debugger": {
               "test": "javascript",
               "rule": "no-debugger",
               "category": "standard",
               "severity": "resolved",
               "resources": [
                  "https://eslint.org/docs/latest/rules/no-debugger"
               ],
               "subIssues": []
            }
         }
      }
   ]