feat(monitor): add tight column width mode

[klei22]

This pull request enhances the column width adjustment functionality in run_exploration_monitor.py by introducing a new "tight fit" mode, improving user control over column display. The changes also ensure that the new mode is persisted in the configuration and thoroughly tested.

Column Width Adjustment Improvements:

• Added a new "tight fit" mode for columns, allowing users to cycle through default, fit-to-data, and tightly-fit-to-data widths using the w key. The UI and help text have been updated to reflect this new behavior. [1] [2] [3] [4]
• Introduced the tight_fit_columns set to track columns in tight fit mode, and updated the logic in _column_width and _cycle_column_width to handle the new mode. [1] [2]

Configuration Persistence:

• Modified the configuration save/load logic to persist the tight_fit_columns setting, ensuring user preferences are retained across sessions. [1] [2]

Testing:

• Added unit tests to verify the behavior of the new width cycling, including correct handling when the column heading is longer than the data and ensuring tight fit uses the largest visible value.

These changes provide a more flexible and user-friendly experience when adjusting column widths in the monitor tool.

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.