fix: manual lint fixes

[sdstolworthy]

Description of changes

Fixes for:

• no-constant-condition
• no-useless-catch
• @typescript-eslint/ban-ts-comment
• no-async-promise-executor
• no-empty
• jest/no-standalone-expect
• no-prototype-builtins
• prefer-const
• jest/no-conditional-expect
• no-useless-escape
• @typescript-eslint/no-empty-function
• no-case-declarations
• consistent-return
• double negation

Issue #, if available

Description of how you validated changes

Ran tests and verified no meaningful api changes.

Checklist

• PR description included
• yarn test passes

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[sobolk]

please run e2e tests for this PR.

[codecov-commenter]

Codecov Report

Merging #11638 (b272738) into dev (0e7f70b) will decrease coverage by 0.03%.
The diff coverage is 34.32%.

@@            Coverage Diff             @@
##              dev   #11638      +/-   ##
==========================================
- Coverage   50.20%   50.16%   -0.04%     
==========================================
  Files         702      702              
  Lines       33955    33999      +44     
  Branches     6969     6976       +7     
==========================================
+ Hits        17047    17056       +9     
- Misses      15431    15463      +32     
- Partials     1477     1480       +3     

Impacted Files	Coverage Δ
...y-appsync-simulator/src/resolvers/unit-resolver.ts	90.32% <0.00%> (ø)
...c-simulator/src/schema/directives/aws-subscribe.ts	96.42% <0.00%> (-3.58%)	⬇️
...ages/amplify-appsync-simulator/src/schema/index.ts	70.68% <0.00%> (-1.25%)	⬇️
...tor/src/velocity/util/transform/dynamodb-filter.ts	4.93% <0.00%> (ø)
...c/provider-utils/awscloudformation/import/index.ts	31.02% <ø> (ø)
...ges/amplify-category-custom/src/commands/custom.ts	0.00% <0.00%> (ø)
...tion/src/provider-utils/awscloudformation/index.ts	12.87% <0.00%> (-0.06%)	⬇️
...ion/service-walkthroughs/lambdaLayerWalkthrough.ts	11.21% <0.00%> (ø)
...rc/provider-utils/awscloudformation/utils/build.ts	57.14% <0.00%> (ø)
...r-utils/awscloudformation/utils/funcParamsUtils.ts	23.52% <0.00%> (-1.48%)	⬇️
... and 64 more

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[edwardfoyle]

The trailing comma thing seems like the only thing that should be fixed before this is merged. Other than that I'm okay with where we landed on the other comments