Move torbutton default prefs to 000-tor-browser.js
Now they are loaded manually from several places in torbutton components and modules (via torbutton/modules/default-prefs.js). We should move these to tor-browser 000-tor-browser.js prefs file.
Now they are loaded manually from several places in torbutton components and modules (via torbutton/modules/default-prefs.js). We should move these to tor-browser 000-tor-browser.js prefs file.