feat: propagate context to AppController

[sivchari]

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• The title of the PR conforms to the Toolchain Guide
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• I have signed off all my commits as required by DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• My build is green (troubleshooting builds).
• My new feature complies with the feature status guidelines.
• I have added a brief description of why this PR is necessary and/or what this PR solves.
• Optional. My organization is added to USERS.md.
• Optional. For bug fixes, I've indicated what older releases this fix should be cherry-picked into (this may or may not happen depending on risk/complexity).

Replace context.TODO or context.Background.
The rest of the context.Background can be left as is.

[bunnyshell]

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[nitishfy]

can you fix the failing tests?

[sivchari]

Sure!
I'll do it by the end of today :)

[codecov]

Codecov Report

Attention: Patch coverage is 78.40909% with 19 lines in your changes missing coverage. Please review.

Project coverage is 53.87%. Comparing base (37aaeb3) to head (3d7ea31).
Report is 8 commits behind head on master.

Files with missing lines	Patch %	Lines
controller/appcontroller.go	83.95%	10 Missing and 3 partials ⚠️
controller/hydrator/hydrator.go	20.00%	4 Missing ⚠️
controller/hydrator_dependencies.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #21943      +/-   ##
==========================================
- Coverage   55.73%   53.87%   -1.87%     
==========================================
  Files         341      341              
  Lines       57004    56996       -8     
==========================================
- Hits        31773    30708    -1065     
- Misses      22587    23703    +1116     
+ Partials     2644     2585      -59     

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[sivchari]

@nitishfy
Done.