ui: Configurable metrics graph height and increase truncation limit

[yomete]

This PR allows for configuring the height of the metrics graph and also includes the increasing the truncation count for the file in the graph tooltip to take more advantage of the available space.

[alwaysmeticulous]

✅ Meticulous spotted visual differences in 2 of 362 screens tested, but all differences have already been approved: view differences detected.

Meticulous evaluated ~5 hours of user flows against your PR.

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