Enforce IO thread inside of components

[NotWoods]

Having to guess which thread a controller should run on is a potential mistake waiting to happen. This change enforces that controllers run on a background thread with a suspend function.

Additionally TabCollectionStorage now has a dedicated scope that doesn't get cancelled. This way, the operation will complete even if a fragment is closed.

Pull Request checklist

• Tests: This PR includes thorough tests or an explanation of why it does not
• Screenshots: This PR includes screenshots or GIFs of the changes made or an explanation of why it does not
• Accessibility: The code in this PR follows accessibility best practices or does not include any user facing features. In addition, it includes a screenshot of a successful accessibility scan to ensure no new defects are added to the product.

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[gabrielluong]

This is 🔥

[codecov-commenter]

Codecov Report

Merging #14704 into master will decrease coverage by 0.02%.
The diff coverage is 17.14%.

@@             Coverage Diff              @@
##             master   #14704      +/-   ##
============================================
- Coverage     29.85%   29.83%   -0.03%     
- Complexity     1167     1168       +1     
============================================
  Files           445      445              
  Lines         18080    18089       +9     
  Branches       2346     2354       +8     
============================================
- Hits           5398     5397       -1     
- Misses        12306    12316      +10     
  Partials        376      376              

Impacted Files	Coverage Δ	Complexity Δ
...a/org/mozilla/fenix/browser/BaseBrowserFragment.kt	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
.../org/mozilla/fenix/components/PermissionStorage.kt	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...ssions/SitePermissionsDetailsExceptionsFragment.kt	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...tepermissions/SitePermissionsExceptionsFragment.kt	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...PermissionsManageExceptionsPhoneFeatureFragment.kt	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...org/mozilla/fenix/tabtray/TabTrayDialogFragment.kt	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...g/mozilla/fenix/components/TabCollectionStorage.kt	26.19% <9.09%> (-6.07%)	2.00 <0.00> (ø)
.../fenix/collections/CollectionCreationController.kt	100.00% <100.00%> (ø)	0.00 <0.00> (ø)
...la/fenix/collections/CollectionCreationFragment.kt	91.37% <100.00%> (ø)	6.00 <0.00> (ø)
...ix/home/sessioncontrol/SessionControlController.kt	86.23% <100.00%> (ø)	0.00 <0.00> (ø)
... and 1 more

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