Added code to remove brackets in file name

[MaciejGorczyca]

If you are watching movies or other stuff with info in file names such as [1080p], [Translation Group Name] and you want to get rid of it, with this update you can use new config line "exports.ignoreBrackets = true" and all brackets and their content will disappear.

It only removes [ ] and everything between them. It will keep ( ) and other brackets.

I just wanted to add a way to switch it ON and OFF since some people might want to keep the brackets so I added new config line called ignoreBrackets that is boolean type. I added ./config as required in core.js and it's reading the ignoreBracket setting in the same way and in the same place as index.js is reading the port.

I wasn't sure how to do the replace part, so you might keep it as it is or change it to

if (ignoreBrackets) playback.filename = document.getElementById('filepath').textContent.split("\").pop().replace(/ [[^)]] */g, "").trimStr(128);
else playback.filename = document.getElementById('filepath').textContent.split("\").pop().trimStr(128);

edit: fixed regex, was pretty tired last night and didn't have a chance to test it fully...

[liddack]

Thank you for your PR, it's a really nice addition. There's only one thing in your regex yet to improve.
I did some testing and noticed that if a string has a [brackets section] between words there will be no whitespace separating them, since the regex also removes the whitespaces around brackets.

For instance:
Hilda Official Trailer [HD] Netflix.mp4 becomes Hilda Official TrailerNetflix.mp4.

I guess it will be just fine if we remove only the whitespace(s) before [bracket sections] as in most cases there's no space preceding file extensions (the only case affected by not removing whitespaces after brackets, I suppose).

[liddack]

I went ahead and applied a fix for what I mentioned above, and merged this PR.
I'll add a new Options section to README.md with an overview of each option in config.js (only 2 atm).
And again, thank you for your PR, feel free to send more if you'd like! 😄