[flow] Ignore packages in node_modules that cause errors and we do not want to fix

.flowconfig

 .*/Libraries/react-native/React.js
 .*/Libraries/react-native/ReactNative.js
 
+; Ignore packages in node_modules which we (i.e. the jitsi-meet project) have
+; seen to cause errors and we have chosen not to fix.
+.*/node_modules/babel-core/.*
+.*/node_modules/bower/.*
+.*/node_modules/jsonlint/.*
+
 [include]
 
 [libs]