[BUG] Error when naming Request starting with "/"

[jahirvidrio]

Description

I am currently using version 1.6.1 on MacOS. I have encountered a bug where attempting to name a REQUEST with any name starting with "/" results in the following error:

Error invoking remote method 'renderer:new-request': Error: ENOENT: no such file or directory, open '/Users/**/Desktop/collections/My Collection/My Folder//auth/sign-in/lookup.bru'

I've identified that the method used to create the file path is concatenating the literal name I provided with the relative project path. It seems that there is an issue with the concatenation process, leading to the creation of an incorrect file path.

Steps to Reproduce

1. Attempt to create "New Request" or "Rename" existing request
2. Enter a name for the request that starts with "/" (e.g., "/example").

Expected Behavior

Creating a request with a name starting with "/" should not result in a file path error.

[Its-treason]

Bruno currently has some issues on escaping filenames (like removing other invalid characters from the filename on Windows). There is already a PR open to fix this issue: #349, but this may need some time to be merged.