tui timezone

[fujiapple852]

Closes #1513

[Copilot]

Pull Request Overview

This PR introduces timezone configuration for the TUI by adding a new configuration field, CLI argument, and runtime logic for timezone conversion. It updates documentation, configuration structs, parsing logic, tests, and dependencies to support timezone customization.

• Added documentation and sample configuration for the TUI timezone in trippy-config-sample.toml.
• Extended TUI configuration structures and command line parsing to include an optional timezone setting.
• Updated header rendering to conditionally display the current time in the configured timezone and added related tests.

Reviewed Changes

Copilot reviewed 10 out of 20 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
trippy-config-sample.toml	Added comments for the timezone configuration
crates/trippy-tui/src/frontend/render/header.rs	Updated rendering logic to handle an optional timezone
crates/trippy-tui/src/frontend/config.rs	Added a timezone field to TuiConfig
crates/trippy-tui/src/config/file.rs	Introduced the tui_timezone field in the file configuration
crates/trippy-tui/src/config/cmd.rs	Added a command line argument for setting timezone
crates/trippy-tui/src/config.rs	Parsed the timezone configuration and integrated tests for it
crates/trippy-tui/src/app.rs	Passed the timezone configuration in the TUI config construction
crates/trippy-tui/Cargo.toml & Cargo.toml	Added and updated the dependency on chrono-tz

Files not reviewed (10)

• .config/trippy.dic: Language not supported
• crates/trippy-tui/tests/resources/snapshots/[email protected]: Language not supported
• crates/trippy-tui/tests/resources/snapshots/trippy_tui__config__tests__compare_snapshot@trip_--help.snap: Language not supported
• crates/trippy-tui/tests/resources/snapshots/trippy_tui__config__tests__compare_snapshot@trip_-h.snap: Language not supported
• crates/trippy-tui/tests/resources/snapshots/trippy_tui__print__tests__output@generate_bash_shell_completions.snap: Language not supported
• crates/trippy-tui/tests/resources/snapshots/trippy_tui__print__tests__output@generate_elvish_shell_completions.snap: Language not supported
• crates/trippy-tui/tests/resources/snapshots/trippy_tui__print__tests__output@generate_fish_shell_completions.snap: Language not supported
• crates/trippy-tui/tests/resources/snapshots/trippy_tui__print__tests__output@generate_man_page.snap: Language not supported
• crates/trippy-tui/tests/resources/snapshots/trippy_tui__print__tests__output@generate_powershell_shell_completions.snap: Language not supported
• crates/trippy-tui/tests/resources/snapshots/trippy_tui__print__tests__output@generate_zsh_shell_completions.snap: Language not supported