Summary: Network requests and responses using JSON API content type of pattern `application/vnd.api+json` (see https://jsonapi.org/#mime-types) are currently treated as binary data. They should be treated as textual content. ## Changelog Add regular expression to detect JSON content types. Pull Request resolved: https://github.com/facebook/flipper/pull/2337 Test Plan: Using an API that return `Content-Type` of pattern `application/vnd.api+json`, verify that the response data in sidebar appears as text rather than `(binary data)`. Reviewed By: passy Differential Revision: D28513547 Pulled By: mweststrate fbshipit-source-id: 3335b7eeb63c2429c2245113c8c83bd7e08a9420