Package Manager: Does not show the download size for a Prefab Collection

[YYDan]

Description

Package Manager does not show the download size for a Prefab Collection, so there's no knowledge of how long it might take to download/how much data it might cost on a metered connection/the size on disk, etc.

For example:

Expected Change

Each Prefab Collection has its download size shown (probably next to the version number you're about to download, as different versions might well be different sizes)

Steps To Reproduce

1. Start GameMaker and open/create any project
2. Open the Prefab Library if it is not open already
3. Click the button to open Package Manager
4. Browse the list of prefabs
5. Observe you're never told their size

Which version of GameMaker are you reporting this issue for?

IDE v2024.1100.0.703 Runtime v2024.1100.0.719

Which operating system(s) are you seeing the problem on?

Windows 10.0.22631.0

10371de5-0c89-4aef-8136-a2e2ffaf603f