Terminal suggest: options/flags marked as `isPersistent` are not shown at all

[JeffreyCA]

For example, the GitHub CLI spec has a root level --help option that's marked as persistent, but --help does not appear in the root command suggestions or any of its subcommands:

vscode/extensions/terminal-suggest/src/completions/gh.ts

Lines 3393 to 3400 in 6a3b902

	options: [
	{
	name: "--help",
	description: "Show help for command",
	isPersistent: true,
	},
	],
	};