Enable more configurability for the Online resource linking modal from the schema plugin

[CMath04]

Summary

This PR removes the hardcoded searchParamsPerType configuration from the OnlineSrcDirective.js file and instead moves it as part of the <schema>/config/associated-panel/*.json schema configuration.
This also implements global filter configuration on the sibling relation type via the metadataStore.params value.

Example of dcat-ap/config/associated-panel/default.json:

{
  "config": {
    "display": "radio",
    "multilingualFields": [],
    "associatedResourcesTypes": [
      {
        "type": "siblings",
        "label": "linkToSibling",
        "config": {
          "sources": {
            "metadataStore": {
              // metadataStore.params was ignored for siblings type before
              "params": {
                "documentStandard": [
                  "dcat-ap"
                ],
                "isTemplate": "n"
              },
              // moved from hardcoded JS file
              "searchParamsPerType": {
                "catalog-*": {
                  "type": [
                    "catalog"
                  ]
                },
                "nextResource-*": {
                  "type": [
                    "dataset",
                    "service"
                  ]
                }
              }
            },
            "remoteurl": {
              "multiple": true
            }
          }
        }
      }
    ]
  }
}

Result:

CC: @fxprunayre , @joachimnielandt

Checklist

• I have read the contribution guidelines
• Pull request provided for main branch, backports managed with label
• Good housekeeping of code, cleaning up comments, tests, and documentation
• Clean commit history broken into understandable chucks, avoiding big commits with hundreds of files, cautious of reformatting and whitespace changes
• Clean commit messages, longer verbose messages are encouraged
• API Changes are identified in commit messages
• Testing provided for features or enhancements using automatic tests
• User documentation provided for new features or enhancements in manual
• Build documentation provided for development instructions in README.md files
• Library management using pom.xml dependency management. Update build documentation with intended library use and library tutorials or documentation

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}