Ability to attach client certificates at collection folder level and/or at request level

Feature

One common use-case for users in Insomnia is to get OAUTH tokens through REST endpoints with client certificate grant. There is a scenario where a user wants to get a OAUTH tokens from the same endpoint but with different client certificates, it becomes cumbersome with the current approach where user has to delete existing entry in "client certificates" section and replace it with new entry where the domain is same but certificate is different.

Solution

Add a new tab called "Certificates" at the request level and also at the folder level

Users can upload unique client certificate and ca certificates at every request level. By providing this feature, it is not required for users to delete and add certificates for every requests.