Browser correctly closing

• Now logs like "number: SENT" are printed after the message sending
• The browser is now correctly closing
• From last version is possible to exclude use of embedded Chromium instead of Chrome (if installed); now it is excluded by --local-chromium flag

Use --help flag to get some help

Option to use local Chromium

• Added option to use local Chromium
• Typo fixed

Sendable videos

Now videos can be sent, still cannot send gifs.
In order to send videos, Google Chrome will be used instead of built-in Chromium (so if you have Chrome installed, .local-chromium folder is useless).
Also done some other minor changes under the hood.

First release

First release, download your relative OS .zip, decompress, open a terminal in the folder and start the program (index.exe in Windows and .\index in Linux; in Linux you may have to give execute permissions).

It still isn't able to send videos/gifs and to send all the content in a folder.

This release is not completely reliable and tested!