Show file size for project version

[LapizPlayz]

Is your feature request related to a problem? Please describe.
I have a habit of storage hoarding, and my 512GB SSD is filling up. So, I need to know how large the downloadable worlds are before I accidentally take my precious 39.6GB out without going to CurseForge.

Describe the solution you'd like
Add a file size counter (e.g. 519KB/15.2MB) and speed counter (e.g. 512Kbps, 10 MB/s) for downloads and updates.

Additional context
Also add how large files are before downloading them, similar to CurseForge where worlds have a file size counter in order for users to not take up their whole SSD filled with Futuristic Cities and Landscape maps.

Additional features
Add the ability to change how the file size is displayed (e.g. MB to KB instead).

[LapizPlayz]

This is gonna take ages to implement all of my suggestions, so I suggest you take your time.