Truncate wide cells in the interactive table browser

[tanishgupta-db]

Changes

Truncates each cell to a fixed width (with an ellipsis) in the interactive table browser (libs/tableview). Previously a single large value (Ex. BLOB) made its column extremely wide and degraded rendering and horizontal scrolling.

This affects all consumers of the interactive browser: experimental aitools tools query, experimental postgres query.

Why

...

Tests

• Unit tests
• Existing libs/tableview, aitools, and postgres tests still pass.

[github-actions]

An authorized user can trigger integration tests manually by following the instructions below:

Trigger:
go/deco-tests-run/cli

Inputs:

• PR number: 6034
• Commit SHA: b0a68c2be4f463941cf9bf0732803545b6342435

Checks will be approved automatically on success.

[github-actions]

Waiting for approval

Based on git history, these people are best suited to review:

• @simonfaltum -- recent work in libs/tableview/
• @pietern -- recent work in libs/tableview/

Eligible reviewers: @andrewnester, @anton-107, @denik, @janniklasrose, @lennartkats-db, @renaudhartert-db, @shreyas-goenka

_{Suggestions based on git history. See OWNERS for ownership rules.}