added some search-terms to the platform category

[1Kinoti]

Description

Add some search terms to the platform category

command	search-terms(s)
kill	stop, end, close
sleep	delay, wait, sleep, timer
ansi	text-color, text-style, colors
ansi gradient	gradients

Contributes to issue #5093

Tests + Formatting

Make sure you've done the following, if applicable:

• Add tests that cover your changes (either in the command examples, the crate/tests folder, or in the /tests folder)
  • Try to think about corner cases and various ways how your changes could break. Cover those in the tests

Make sure you've run and fixed any issues with these commands:

• cargo fmt --all -- --check to check standard code formatting (cargo fmt --all applies these changes)
• cargo clippy --workspace --features=extra -- -D warnings -D clippy::unwrap_used -A clippy::needless_collect to check that you're using the standard code style
• cargo test --workspace --features=extra to check that all tests pass

User-Facing Changes

If you're making changes that will affect the user experience of Nushell (ex: adding/removing a command, changing an input/output type, adding a new flag):

• Get another regular contributor to review the PR before merging
• Make sure that there is an entry in the documentation (https://github.com/nushell/nushell.github.io) for the feature, and update it if necessary

[fdncred]

Thanks for this.

I think the CI is complaining about search terms that we don't need. For example, if the command is called sleep, we don't need a search term called sleep because it's already searched with the command name.

[1Kinoti]

I guess I should remove them then?

[fdncred]

I guess I should remove them then?

yes, hopefully that'll make the ci green.

[sholderbach]

Thanks for the quick turnaround!