CLI: Rename delete command to remove, add 'rm' alias

[dkbennett]

Summary of the Pull Request

Renames the "delete" command to "remove"
Adds the "rm" alias for this command

Renames the associated task as well, and updates tests.

PR Checklist

• Closes: Link to issue #xxx
• Communication: I've discussed this with core contributors already. If work hasn't been agreed, this work might be rejected
• Tests: Added/updated if needed and all pass
• Localization: All end user facing strings can be localized
• Dev docs: Added/updated if needed
• Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

Entire PR is just renaming and adding the "rm" alias to the command.

The diff might be a bit off because I am preserving alphabetical ordering in the tasks so that may cause it to look like there's new functions but it's just a rename.

Validation Steps Performed

Ran updated unit and E2E tests and all pass. Verified command is also functioning as "remove" or "rm"

[Copilot]

Pull request overview

This PR updates the WSLC CLI container deletion UX by renaming the delete command to remove and adding a Docker-like rm alias, with corresponding task and test updates.

Changes:

• Rename container delete / delete to container remove / remove.
• Add rm as an alias for the remove command (including container rm).
• Update unit/E2E tests and task wiring to reflect the new command name.

Reviewed changes

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

Show a summary per file

File	Description
test/windows/wslc/e2e/WSLCE2EHelpers.cpp	Update cleanup helper to invoke container remove instead of container delete.
test/windows/wslc/e2e/WSLCE2EGlobalTests.cpp	Update expected root help output to list remove instead of delete.
test/windows/wslc/e2e/WSLCE2EContainerTests.cpp	Update expected container subcommand help output to list remove instead of delete.
test/windows/wslc/CommandLineTestCases.h	Update parsing test cases to expect remove and accept rm alias forms.
src/windows/wslc/tasks/ContainerTasks.h	Rename task declaration from DeleteContainers to RemoveContainers.
src/windows/wslc/tasks/ContainerTasks.cpp	Rename/relocate implementation to RemoveContainers while keeping deletion behavior.
src/windows/wslc/commands/RootCommand.cpp	Replace registration of ContainerDeleteCommand with ContainerRemoveCommand.
src/windows/wslc/commands/ContainerRemoveCommand.cpp	Implement remove command execution and descriptions.
src/windows/wslc/commands/ContainerCommand.h	Replace ContainerDeleteCommand with ContainerRemoveCommand and add rm alias.
src/windows/wslc/commands/ContainerCommand.cpp	Replace ContainerDeleteCommand registration with ContainerRemoveCommand.

Comments suppressed due to low confidence (1)

src/windows/wslc/commands/ContainerRemoveCommand.cpp:32

• ArgType::Force is included for remove, but its default description (from ArgumentDefinitions.h) still says "Delete containers even if they are running". This will make wslc (container) remove --help show outdated wording. Consider overriding the description in this command (via Argument::Create(..., desc=...)) or updating the shared ArgType::Force description to use “Remove” wording.

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