refactor: update InquiryModal to use latest Relay patterns

[iskounen]

This PR makes some changes to the InquiryButtons component and its children to follow the latest Relay best-practices, and to remove unused code. These changes include:

• Renaming InquiryButtons to ContactGalleryButton to match BuyNowButton and MakeOfferButtonFragmentContainer.
  • Removing the unused alternative button labels.
• Making ContactGalleryButton and InquiryModal fetch data using a useFragment hook instead of createFragmentContainer.
• Making the InquiryModal component submit an inquiry with a useMutation hook instead of commitMutation.

PR Checklist

• [x] I have tested my changes on iOS and Android.
• [x] I hid my changes behind a [feature flag], or they don't need one.
• [x] I have included screenshots or videos, or I have not changed the UI.
• [x] I have added tests, or my changes don't require any.
• [x] I added an [app state migration], or my changes do not require one.
• [x] I have documented any follow-up work that this PR will require, or it does not require any.
• [x] I have added a changelog entry below, or my changes do not require one.

Changelog updates

### Changelog updates #### Dev changes - InquiryModal uses a useFragment hook to populate artwork data - InquiryModal uses a useMutation hook to submit inquiries - InquiryButtons renamed to ContactGalleryButton - ContactGalleryButton uses a useFragment to populate artwork data

[ArtsyOpenSource]

This PR contains the following changes:

• Dev changes (Inquiry modal uses a useFragment hook to populate artwork data,Inquiry modal uses a useMutation hook to submit inquiries)

  Generated by :no_entry_sign: dangerJS against 0c472e16d81bb46a35984b92cd6e992048f4eb63

[araujobarret]

Awesome refactor btw 💪