[Web] Add "Show All Labels/Collapse All Labels" button to Unified List View

[rudream]

Purpose

Adds a button to expand or collapse all labels from all rows in a single click. This is for users who want to see all labels for all rows but don't want to have to go through each row and manually expand them.

This preference is stored in the user's user preferences and will persist between sessions.

Figma design

Demo

expandalllabels.mov

[github-actions]

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[zmb3]

cc @gzdunek in case this impacts Teleport Connect

[gzdunek]

Yes, I will have to add support for this preference property.

[avatus]

Man, this works great! Tried to break it locally and I couldn't. Also, it makes me realize how messy it looks with all the labels shown so maybe hiding them was a good idea in the first place 🤔

[public-teleport-github-review-bot]

@rudream See the table below for backport results.

Branch	Result
branch/v14	Failed

[github-actions]

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