Update checkout command with new flags and improvements

[Luladjiev]

Enhance the checkout command by adding the --remote and --all flags for improved branching and remote handling. The update also refines error messages for a better user experience.

[Copilot]

Pull Request Overview

Enhances the checkout command with --remote and --all flags to provide better branch filtering options and improves error messages throughout the codebase for better user experience.

• Added --remote and --all flags to the checkout command for filtering local, remote, or all branches
• Updated function signatures to support the new flags throughout the checkout workflow
• Improved error handling with more consistent formatting and better messages

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/main.rs	Updated checkout command invocation to pass new remote and all flags
src/commands/cherry_pick.rs	Improved error message formatting and string formatting consistency
src/commands/checkout.rs	Added remote and all flag support with conditional branch listing logic
src/commands/branch.rs	Minor cleanup removing unnecessary string reference
src/cli.rs	Added remote and all flag definitions to the checkout command
Cargo.toml	Version bump from 0.8.0 to 0.8.1

Comments suppressed due to low confidence (2)

src/commands/checkout.rs:1

• The error message refers to 'commit' but this function is working with branches. It should say 'There was an error determining the branch' instead.

use dialoguer::theme::ColorfulTheme;

src/commands/checkout.rs:1

• The error message refers to 'commit' but this function is working with branches. It should say 'There was an error getting the branch' instead.

use dialoguer::theme::ColorfulTheme;

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