Fixes #4326

Describe your changes

Added a configuration option in metastore settings. If checked, the user will be redirected to the datasets view when creating/editing a dataset. If unchecked, the user will remain on the node page for the dataset instead of the redirect.

• Added configuration key redirect_to_dataset to metastore.settings.yml.
• Added configuration schema for redirect_to_dataset to metastore.schema.yml.
• Added redirect_to_datasets checkbox to the metastore settings form in DkanDataSettingsForm.php
• Restructured the metastore settings form for future maintainability.
• Modified metastore_admin_form_submit() in metastore_admin.module to get the checkbox value on submission to determine redirect behavior.
• Added update hook metastore_update_8010() to metastore.install to set the default value of the config.
• Created functional tests for when the configuration is enabled and disabled in RedirectToDatasetsTest.php

QA Steps

• Navigate to DKAN -> Metastore Settings.
• Confirm that the "Redirect to datasets view after form submit" checkbox exists.
• Verify that it is checked by default.
• Go to Content -> Add Content -> Create Dataset.
• Fill in the required fields and submit the form.
• Expected result: You should be redirected to the datasets view after submission.
• Return to Metastore Settings.
• Verify the checkbox is still checked, then uncheck it and save.
• Edit the dataset you just created, make a small change, and submit again.
• Expected result: You should stay on the dataset’s node page after submission instead of being redirected.

Checklist before requesting review

If any of these are left unchecked, please provide an explanation

• I have updated or added tests to cover my code
• [N/A] I have updated or added documentation