[epic] Improving App Change details

[100mik]

A set of changes intended to improve the observability that the app-change feature offers while improving how users interact with stored app changes.

This epic currently includes these issues:

• #338
• #339
• #340
• #341

We are open to suggestions about how we can add more value to stored app-changes. Feel free to put down your thoughts in this thread!

[rohitagg2020]

Moving it to low priority.