[NT-1565] Backers Can Edit an Expired Reward with Add-Ons

[justinswart]

📲 What

Allows backers to edit an expired reward with add-ons.

🤔 Why

Fixes a bug from #1309. Rewards should be editable if they've expired and have add-ons.

🛠 How

Fixed the logic for this and added tests.

👀 See

✅ Acceptance criteria

• Back a reward with add-ons that will expire soon. Once it has expired you should be able to edit it.
• There should be no regressions to other reward editing behaviour (see tests).

[codecov]

Codecov Report

Merging #1313 into master will increase coverage by 13.50%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           master    #1313       +/-   ##
===========================================
+ Coverage   72.23%   85.74%   +13.50%     
===========================================
  Files         608     1109      +501     
  Lines       40389    97135    +56746     
===========================================
+ Hits        29175    83288    +54113     
- Misses      11214    13847     +2633     

Impacted Files	Coverage Δ
Library/SharedFunctions.swift	83.70% <100.00%> (ø)
Library/SharedFunctionsTests.swift	100.00% <100.00%> (ø)
...rary/ViewModels/RewardCardContainerViewModel.swift	91.35% <100.00%> (ø)
Library/ViewModels/RewardCardViewModel.swift	95.20% <100.00%> (ø)
...ibrary/ViewModels/RewardsCollectionViewModel.swift	99.42% <100.00%> (ø)
...y/ViewModels/RewardsCollectionViewModelTests.swift	100.00% <100.00%> (ø)
...y/ViewModels/ProjectActivitiesViewModelTests.swift	100.00% <0.00%> (ø)
Library/UpdateActivityItemProviderTests.swift	100.00% <0.00%> (ø)
Library/ViewModels/WebModalViewModelTests.swift	100.00% <0.00%> (ø)
Library/Instantiable.swift	100.00% <0.00%> (ø)
... and 502 more

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[singhhari]

lgtm