Reimplement Delete button to Blob Header in Vue

This is a follow-up issue to #323210 (closed), where we are rebuilding the Blob header into Vue.

This issue is to cover the "Delete" button

Button Modal
image image

Backend Support

Similarly to how we have the replacePath for the "Replace" button. Can we please also expose a deletePath in the GraphQL endpoint 😁

For reference, this is the replacePath info: