Mostly codesniffer fixes and some formatting

[jonnywilliamson]

Removes a few CS warnings and made a couple of areas in the code clearer to understand with more spacing.

[irazasyed]

Should be @return Api

[jonnywilliamson]

Actually should it not be @return CommandBus ?

That's what the addcommand/addcommands/removecommands all have....

eg:

  /**
     * Add a command to the commands list.
     *
     * @param CommandInterface|string $command Either an object or full path to the command class.
     *
     * @throws TelegramSDKException
     *
     * @return CommandBus
     */
    public function addCommand($command)

I'll add the commit when you confirm

[irazasyed]

Yes, That's what it should say! Sorry i didn't actually notice the file name.

@return CommandBus