src/vs/workbench/contrib/extensions/browser/extensionsActions.ts/AbstractInstallAction/getLabel
class AbstractInstallAction:	getLabel(primary?: boolean): string {
		/* install pre-release version */
		if (this.installPreReleaseVersion && this.extension?.hasPreReleaseVersion) {
			return primary ? localize('install pre-release', "Install Pre-Release") : localize('install pre-release version', "Install Pre-Release Version");
		}
		/* install released version that has a pre release version */
		if (this.extension?.hasPreReleaseVersion) {
			return primary ? localize('install', "Install") : localize('install release version', "Install Release Version");
		}
		return localize('install', "Install");
	}