Method refresh

src/helpViewer/helpProvider.ts:189–193

()

    // delete stored aliases, will be generated on next request
    public async refresh(): Promise<void> {
        this.aliases = undefined;
        await this.persistentState?.update('r.helpPanel.cachedAliases', undefined);
        await this.makeAllAliases();
    }

    // get a list of all aliases
    public async getAllAliases(): Promise<rHelp.Alias[] | undefined> {