[INLONG-1833] Add team tab to the official website and add a team page

[bluewang]

Fixes apache/inlong#1833

where XYZ should be replaced by the actual issue number.

Motivation

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Modifications

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Verifying this change

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This change is a trivial rework / code cleanup without any test coverage.

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• Added integration tests for end-to-end deployment with large payloads (10MB)
• Extended integration test for recovery after broker failure

Documentation

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