fix(fuselage): Add tooltip to SidebarV2ItemTitle when truncated Channel name

[dodaa08]

Proposed changes (including videos or screenshots)

This PR adds a lightweight tooltip to the SidebarV2ItemTitle component.

The Problem: When channel names in the sidebar are long, they are truncated with an ellipsis (...), but there was no way for users to see the full name without opening the channel.

Screencast.From.2026-02-24.00-29-52.mp4

After

Screencast.From.2026-02-24.00-29-20.mp4

Add smart tooltip to SidebarV2ItemTitle when truncated

Further comments

For this implementation, I used the native browser
title
attribute to keep the sidebar as lightweight as possible, especially given the high number of items it can contain. I've also ensured that any onMouseEnter prop passed by consumers is still executed correctly.

Does this approach look good to you, or would you prefer using a custom Tooltip component to match the design system more closely? I'm happy to refine this based on your feedback

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Latest commit: 7a874c2

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[dougfabris]

Hi there, thanks for the contribution 🚀

This fix needs to be done on Rocket.Chat side, its just a matter of adding title to the sidebar item