Fix #3317: Update old todos

[Sparsh1212]

Explanation

Fixes #3317: Correct poorly formatted todos and update those which doesn't correspond to an open issue.

Issues that we should reopen because they aren't resolved, or issues which have additional work to complete:

• Paused activity does not get LiveData update onResume #322
• We need to audit the TODO cases to make sure they're resolved (though they might be per Viktoriia's comment in which case we should remove the TODO)
• Add NetworkModule to ApplicationModule and tests once migrated off of Moshi #1675
• One test still needs to be updated (per the TODO) to finish resolving this; we should just fix that and remove the TODO rather than reopening the issue

Issues whose TODOs need to be repurposed to new/other issues:

• Add Bazel Linter to the project #1736
  • New issue should be filed
• Addition of Work Manager [GSoC'20][Milestone 3]  #1106
  • New issue should be filed
• Implement TopicController #15
  • New issue should be filed
• Introduce thread-safe MediatorLiveData or alternative #90
  • New issue should be filed
• Add temporary offline support for audio & image streaming #386
  • Use issue Implement cohesive topic & exploration asset downloader #169 instead of Add temporary offline support for audio & image streaming #386 for this TODO
• Generic data provider infrastructure #6
  • Except for TODO in DataProvider.kt; that one can be removed
• Migrate custom recycler view adapters over to the generic bindable adapter #216
  • Should be updated to reference Replace current recyclerview implementation with BindableAdapter usage #632 instead
• Full UI: ItemSelectionInteractionView [Blocked: #15, #154] #32
  • New issue should be filed
• Lowfi Implementation of My Downloads #1806
  • Work with Akshay to find/file replacement issues for each existing TODO
• Introduce dependency injection support #74
  • New issue should be filed
• Create backend storage models for feedback reporting #2801

Issues whose TODOs are also resolved and thus should be removed from code, or TODOs which do not need to be resolved:

• Add tests for score and mastery calculations #2738
• Implement TopicController #15
• Add support for refresher explorations in the exploration player #182
• Implement StoryProgressController #21
• Offline Exception Logging [GSoC'20][Milestone 3]  #1104: Remove TODO and add KDoc

Checklist

• The PR title starts with "Fix #bugnum: ", followed by a short, clear summary of the changes. (If this PR fixes part of an issue, prefix the title with "Fix part of #bugnum: ...".)
• The PR explanation includes the words "Fixes #bugnum: ..." (or "Fixes part of #bugnum" if the PR only partially fixes an issue).
• The PR follows the style guide.
• The PR does not contain any unnecessary auto-generated code from Android Studio.
• The PR is made from a branch that's not called "develop".
• The PR is made from a branch that is up-to-date with "develop".
• The PR's branch is based on "develop" and not on any other branch.
• The PR is assigned to an appropriate reviewer in both the Assignees and the Reviewers sections.

[vinitamurthi]

LGTM for codeowner files!

[oppiabot]

Assigning @BenHenning for code owner reviews. Thanks!

[anandwana001]

Code owner files LGTM

[Sarthak2601]

LGTM for #1104's to-do change.

[rt4914]

Approved for code-owner files. Thanks

[Sparsh1212]

@BenHenning I and @prayutsu did some research on the TODO for issue #322, but we weren't able to reach a conclusion. It looks like it needs a deeper investigation. Repurposed the current TODO to a new issue so that this doesn't block this PR.

[BenHenning]

Thanks @Sparsh1212. Generally LGTM, just looking to get confirmation from two other team members before approving these updates.

It's great to see the TODOs becoming up-to-date & correctly formatted. :)

[Sparsh1212]

@BenHenning
We probably missed the TODO for issue #114.
https://github.com/oppia/oppia-android/blob/HEAD/domain/src/test/java/org/oppia/android/domain/exploration/ExplorationProgressControllerTest.kt#L106

[jcqli]

LGTM for issue #3016! Thanks for your patience

[BenHenning]

@Sparsh1212 let's file a new issue to track the work for #114's TODO.

[Sparsh1212]

@BenHenning Filed new issue #3646 as a replacement for #114. PTAL.

[BenHenning]

Thanks @Sparsh1212! LGTM.

[BenHenning]

Merging since the Bazel tests should be fine, and they seem to be hanging at the moment.