fix(suboptimal): allow checks for chromium based browsers

interface_config.js

     // Names of browsers which should show a warning stating the current browser
     // has a suboptimal experience. Browsers which are not listed as optimal or
     // unsupported are considered suboptimal. Valid values are:
-    // chrome, edge, electron, firefox, nwjs, opera, safari
-    OPTIMAL_BROWSERS: [ 'chrome', 'firefox', 'nwjs', 'electron' ],
+    // chrome, chromium, edge, electron, firefox, nwjs, opera, safari
+    OPTIMAL_BROWSERS: [ 'chrome', 'chromium', 'firefox', 'nwjs', 'electron' ],
 
     // Browsers, in addition to those which do not fully support WebRTC, that
     // are not supported and should show the unsupported browser page.

react/features/base/environment/environment.js

 
 const browserNameToCheck = {
     chrome: browser.isChrome.bind(browser),
+    chromium: browser.isChromiumBased.bind(browser),
     edge: browser.isEdge.bind(browser),
     electron: browser.isElectron.bind(browser),
     firefox: browser.isFirefox.bind(browser),