refactor(store): rely on ngDevMode to be always defined

[arturovt]

This commit updates all ngDevMode conditions to remove the check for ngDevMode being undefined. We can ensure it's always defined by Angular since VE has been dropped. However, the typeof check is still necessary to ensure code safety, as ngDevMode is a global variable provided by the framework.

[nx-cloud]

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✅ Successfully ran 6 targets

• nx run-many --target=test --all --configuration=ci --base=remotes/origin/master --head=HEAD
• nx run-many --target=lint --all --configuration=ci --base=remotes/origin/master --head=HEAD
• nx lint-types store
• nx run-many --target=build --all
• nx run-many --target=test --all --configuration=ci --maxWorkers=4
• nx run-many --target=lint --all

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[bundlemon]

BundleMon (Integration Projects)

Files updated (1)

Status	Path	Size	Limits
✅	Main bundles(Gzip) hello-world-ng16/dist-integration/main.(hash) .js	66.94KB (+17B +0.02%)	+1%

Unchanged files (1)

Status	Path	Size	Limits
✅	Main bundles(Gzip) hello-world-ng17/dist-integration/main.(hash) .js	68.43KB	+1%

Total files change +11B +0.01%

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

[codeclimate]

Code Climate has analyzed commit 6bbdf0d and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 95.3% (0.0% change).

View more on Code Climate.