[Website] update check-links

[bullet03]

• update check-links.sh script
• add func to find absolute links, leading to prod and staging
• add manually verified list with links that should be ignored
• sort invalid links by error code status

---

before:

after:

• checking absolute production links
  
  
• checking staging links
  
  
• invalid links sorted by error status code
  

---

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[bullet03]

R: @aromanenko-dev, could you kindly help with review?

[github-actions]

Stopping reviewer notifications for this pull request: review requested by someone other than the bot, ceding control

[aromanenko-dev]

Please, check the naming of methods and variable names.

Do we run this script automatically? What is an example of the output?

[bullet03]

Please, check the naming of methods and variable names.

Do we run this script automatically? What is an example of he output?

• Yes, script is run automatically
• Example of the output:
  
  
  

Example of the output is also provided in the description of the PR.

[aromanenko-dev]

LGTM