interface:
- support browser dark mode (Firefox >= 67)
- text mode is now the only way to edit rules in the options page

bug fix:
- blocking javascript for the website domain no longer block javascript for others domains
- scripts imported with importScripts were sometimes not blocked
- inline scripts in iframes were not blocked when javascript was not allowed for their domain
- works if the page uses the HTTP header csp-sandbox

rules:
- support local hostnames like "localhost"
- allow rules with punycode hostnames

- the table no longer shows the parent domains if they have an empty row (no request and no rule)
- a new button to show the parent domains when needed (to create a rule on them)

- display the icon badge only when requests have been blocked

- display a counter of blocked requests on the icon
- a setting to disable the counter in the options
- the button to disable the blocking now disables it only for the current tab
- detect if the page is restricted for addons (addons.mozilla.org, about:config, ...)

- WebSocket, beacon, ping and Content-Security-Policy report requests are now treated as XMLHttpRequest requests and can therefore be blocked with the XHR column.
- <object> and <embed> are now treated as <frame>/<iframe> requests and can therefore be blocked with the FRAME column.
- bug fix: when use next and previous page buttons the extension no longer displays an error message if the browser has loaded the page from the cache.