Feature: Improve loading animations on the home page

[QuaintMako]

Resolved / Related Issues
Items resolved / related issues by this PR.

• Closes Feature: Improve loading animations on the home page #8441

What has been done

• Switching from BulkConcurrentObservableCollection to ObservableCollection.
• Minor refactoring.

Validation
How did you test these changes?

• Built and ran the app

Screenshots

[QuaintMako]

Setting this as a draft for several reasons :
1- The result on my computer looks a bit choppy. I'd appreciate if someone could test it on their machine.
2- Switching from BulkCollection to ObservableCollection fixed the issue. But why was it Bulk in the first place? Need to be investigated. Still wrapping my head around what a BulkCollection is.

[hez2010]

Still wrapping my head around what a BulkCollection is.

It's our own implementation of ObservableCollection which supports bulk inserting multiple items without need of trigger CollectionChanged event when every single item gets inserted, and it's implemented in a thread-safe manner. This is a significant optimization to avoid UI freeze while dealing with plenty of data.

We prefer to use BulkConcurrentObservableCollection rather than ObservableCollection in Files.

[QuaintMako]

It's our own implementation of ObservableCollection which supports bulk inserting multiple items without need of trigger CollectionChanged event when every single item gets inserted, and it's implemented in a thread-safe manner. This is a significant optimization to avoid UI freeze while dealing with plenty of data.

We prefer to use BulkConcurrentObservableCollection rather than ObservableCollection in Files.

Thanks for the explanation, I see the utility then.

In the case of this issue, maybe it's viable to use ObservableCollection? We haven't a lot of data to deal with, only six elements. In not, we'd need to somehow get BulkCollection to be "usable by animations" on the UI.

[hez2010]

I think it's fine to switch it here.

[yaira2]

LGTM