IBX-10163: Document integrated help

[dabrt]

Question	Answer
JIRA Ticket	IBX-10163
Versions	4.6.x, 5.0.x
Edition	LTS Update

Document integrated help

TODO:
Replace screenshots after fixes in product, describe ways to exit the help center once it is fixed in product.

Checklist

• Text renders correctly
• Text has been checked with vale
• Added link to this PR in relevant JIRA ticket or code PR

[github-actions]

Preview of modified files

Preview of modified Markdown:

• docs/getting_started/discover_ui.md
• docs/getting_started/get_started.md

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[AnnaKaih]

Preview of modified files

Preview of modified Markdown:

• docs/getting_started/discover_ui.md
• docs/getting_started/get_started.md

Notes:
⭕️ "If you are a developer whose task is to set up or extend the application, it links to developer documentation, API references and the GraphQL console." - should we add here that developer will have access to user documentation + dev docs? Highlighting that dev does not only have access to tech docs

⭕️ "Help center can be customized to fit the needs of your organization" - clickable link on the word "Customized" is not working

⭕️ If we agree to add X to close Help Center dialog, we need to say that to exit dialog click on the X

⭕️ I would also add that Help Center also shows the current version of the product ( meaning that a user may check the version from this place as well)