Geo Primary verification: Hide checksum buttons and status when the model is not verifiable
### Problem to solve When a model's replication is disabled, so is verification. Currently, in the new Data Management area, we're showing the `checksum` button and `verification_state` badge for all model records, even if they're un-verifiable. ### Proposal Hide the state badge and checksum buttons when the model is not verifiable. This data is found in [`model_data`](https://gitlab.com/gitlab-org/gitlab/-/blob/master/ee/app/helpers/ee/geo_helper.rb?ref_type=heads#L95), in the `checksum_enabled` field. In other words: if `model_data[:checksum_enabled]` is false, hide the badge and checksum buttons. <!-- Label reminders Make sure to add the appropriate labels for the product stage and/or group (e.g ~"devops::plan") if known and add a comment tagging the appropriate Product Manager. Use the following resources to find the appropriate labels: - Use only one tier label choosing the lowest tier this is intended for - https://gitlab.com/gitlab-org/gitlab/-/labels - https://about.gitlab.com/handbook/product/categories/features/
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