test: re-stucturing API test suites/global hooks

[abilevych]

What ❔

• re-structuring the Endpoints-related test suite within the test solution
• added global hooks

Why ❔

• to have the possibility of running tests independently
• to make a more clear and concise structure.

[abilevych]

NB

It's still in progress.

[github-actions]

API E2E Test Results

184 tests   - 8   184 ✔️  - 8   23s ⏱️ -8s
  12 suites ±0       0 💤 ±0 
    1 files   ±0       0 ❌ ±0 

Results for commit 37765e0. ± Comparison against base commit 5e62c42.

♻️ This comment has been updated with latest results.

[github-actions]

Unit Test Results

       3 files  ±  0     237 suites  ±0   2m 30s ⏱️ -50s
1 808 tests  - 26  1 807 ✔️  - 26  1 💤 ±0  0 ❌ ±0 
1 833 runs   - 26  1 832 ✔️  - 26  1 💤 ±0  0 ❌ ±0 

Results for commit 37765e0. ± Comparison against base commit 5e62c42.

♻️ This comment has been updated with latest results.

[github-actions]

Visit the preview URL for this PR (updated for commit 37765e0):

• https://staging-scan-v2--pr67-qa-487-re-structure-nsim5sx1.web.app
• https://staging-storybook-scan-v2--pr67-qa-487-re-structure-ozycny8m.web.app

_{(expires Thu, 16 Nov 2023 14:19:07 GMT)}

_{🔥 via Firebase Hosting GitHub Action 🌎}

_{Sign: e508f9012944951194447cb8885950b451a24403}

[abilevych]

@Romsters @vasyl-ivanchuk do you have a chance to review the PR?

[abilevych]

@vasyl-ivanchuk thank you for the review.