Change title for v-tooltip

[rafael-graunke]

Closes #3935

Replaces title attributes with the v-tooltip directive in four tray menu components:

• InternetTrayMenu
• ThemeTrayMenu
• GpsTrayMenu
• HealthTrayMenu

This makes tooltips consistent with the rest of the codebase.

Tested locally.

Summary by Sourcery

Enhancements:

• Standardize tooltip usage in Internet, Theme, GPS, and Health tray menus by switching from title attributes to the v-tooltip directive.

[CLAassistant]

All committers have signed the CLA.

[sourcery-ai]

Hey - I've left some high level feedback:

• Some of the new v-tooltip usages wrap static strings in template literals (e.g. v-tooltip="`MAVLink heartbeat lost`"); consider using plain string bindings for these to keep the template a bit cleaner and more consistent (e.g. v-tooltip="'MAVLink heartbeat lost'").
• For the interpolated tooltip strings, you can simplify the syntax by dropping the : prefix style you previously used with title and just rely on v-tooltip being an expression binding (e.g. v-tooltip="heartbeat_message()" is fine, but make sure this is consistent across all similar uses).

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- Some of the new `v-tooltip` usages wrap static strings in template literals (e.g. ``v-tooltip="`MAVLink heartbeat lost`"``); consider using plain string bindings for these to keep the template a bit cleaner and more consistent (e.g. `v-tooltip="'MAVLink heartbeat lost'"`).
- For the interpolated tooltip strings, you can simplify the syntax by dropping the `:` prefix style you previously used with `title` and just rely on `v-tooltip` being an expression binding (e.g. `v-tooltip="heartbeat_message()"` is fine, but make sure this is consistent across all similar uses).

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[patrickelectric]

Hi @rafael-graunke, thanks for the contribution. Take a look in the CI to check for linter errors: https://github.com/bluerobotics/BlueOS/actions/runs/27802800284/job/82350381393?pr=3960