Add projections to UI to allow users to create Alternate Names for fields

[travjenkins]

Want to be able to rename fields in the UI. Not 100% define where and how this will happen.

Would like to see what kind of error handling is needed. If it is not too complex then adding this to the collection details page itself could be nice.

[travjenkins]

estuary/flow#1552 needs completed before this can be fully released. We can build out the UI without that work being done .

[kiahna-tucker]

The following is a related requirement that was given when the collection edit workflow feature was discussed (ref: issue 1074):

Enable the creation of a single projection per schema field. If more than one projection exists for a given field (e.g., the example used in the documentation), each projection should be rendered and able to be edited but the definition of additional projections are not allowed.