feat(Tenants): correct links with relative path in balancer

[artemmufazalov]

Closes #2105

Changes:

• Fix links to Tenant page from Databases table with relative balancer
• Fix links to Developer UI with relative balancer
• Do not create links with nodes hosts, only with balancer

How to check changes

Add following changes to .env file and run app with npm run start

##### EM #####
REACT_APP_BACKEND=
REACT_APP_META_BACKEND=http://ui-dev-0.ydb.yandex.net/api/meta8780
META_YDB_BACKEND=

YDB DEV VLA02 and klg1-0561 have paths relative to meta as balancer and these paths are also a little different. UI without this fix makes incorrect links to Tenant page and Developer UI.

YDB RU PRESTABLE has full balancer value, it works on current version and should work after fix.

CI Results

Test Status: ⚠️ FLAKY

📊 Full Report

Total	Passed	Failed	Flaky	Skipped
312	308	0	4	0

😟 No changes in tests. 😕

Bundle Size: ✅

Current: 83.29 MB | Main: 83.29 MB
Diff: +1.54 KB (0.00%)

✅ Bundle size unchanged.

ℹ️ CI Information

• Test recordings for failed tests are available in the full report.
• Bundle size is measured for the entire 'dist' directory.
• 📊 indicates links to detailed reports.
• 🔺 indicates increase, 🔽 decrease, and ✅ no change in bundle size.

[Copilot]

Copilot reviewed 11 out of 11 changed files in this pull request and generated no comments.

[artemmufazalov]

Nodes and MonitoringEndpoint requires additional param in endpoint (nodes=true), we don't sent this param and thus never have these fields in response

[astandrik]

I'm sure we discussed this pr more than enough in pm =)