fix: improve navigation safety checks and add redirect for legacy app…

[shivani170]

…lication routes

Description

Sentry Issue
Cannot read properties of undefined (reading 'href')
https://devtron-a6.sentry.io/issues/7467835537/?project=6232011&query=is%3Aunresolved&referrer=issue-stream

Cannot read properties of undefined (reading 'resourceVersion')
https://devtron-a6.sentry.io/issues/7236985579/?project=6232011&query=is%3Aunresolved&referrer=issue-stream

Cannot read properties of undefined (reading 'from')
https://devtron-a6.sentry.io/issues/7472516589/?project=6232011&query=is%3Aunresolved&referrer=issue-stream

Fixes # (issue)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• The title of the PR states what changed and the related issues number (used for the release note).
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas

[github-actions]

Some linked issues are invalid. Please update the issue links:\nIssue # in is not found or invalid (HTTP }404).\n

[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