Added config for extension, updated a lot of things to use config. Updated icons.

assets/js/config.js

@@ -0,0 +1,25 @@
+export default {
+    // Time for idle state of the browser
+    // The user is considered idle if there was
+    // no activity in the browser for x seconds
+    detectionIntervalInSeconds: 60,
+    //default logging type
+    loggingType: 'domain',
+    // By default logging is enabled
+    loggingEnabled: true,
+    // Url to which to send the heartbeat
+    heartbeatApiUrl: 'https://wakatime.com/api/v1/users/current/heartbeats',
+    // Url from which to detect if the user is logged in
+    currentUserApiUrl: 'https://wakatime.com/api/v1/users/current',
+    // The url to logout the user from wakatime
+    logoutUserUrl: 'https://wakatime.com/logout',
+    // Different colors for different states of the extension
+    colors: {
+        allGood: '',
+        notLogging: 'gray',
+        notSignedIn: 'red',
+        lightTheme: 'white'
+    },
+    // Default theme
+    theme: 'light'
+};