Add image of character in the comparator list

Changed the colors of the network graph to match the color of the
differents houses (the color will probably be in the database in the
future).

Reactivate the panel swipe (there are still some problems but it's
better to keep the swipe for the user).

Added various comments and fixed the missing logo in the about page when
using the phone app.

mobile/www/js/stats.js

@@ -32,8 +32,8 @@ function displayTableOfGrowthRates(growthRates, callback) {
 }
 
 function createListOfAvailableClasses() {
-    const char = feData.characters.find(x => x.id == actualCharId);
     // Get all available classes for the character
+    const char = feData.characters.find(x => x.id == actualCharId);
     const availableClasses = getAvailableClassesForCharacter(char);
 
     // Create the select of available classes