Adjust log initialization position in MainApp

In the MainApp class, let's move the call to the initLogging method
closer to the start of the execution start point, to minimize the
possibility of log statements being executed before the desired log
level is set.

src/main/java/seedu/address/MainApp.java

@@ -53,14 +53,13 @@ public void init() throws Exception {
 
         AppParameters appParameters = AppParameters.parse(getParameters());
         config = initConfig(appParameters.getConfigPath());
+        initLogging(config);
 
         UserPrefsStorage userPrefsStorage = new JsonUserPrefsStorage(config.getUserPrefsFilePath());
         UserPrefs userPrefs = initPrefs(userPrefsStorage);
         AddressBookStorage addressBookStorage = new JsonAddressBookStorage(userPrefs.getAddressBookFilePath());
         storage = new StorageManager(addressBookStorage, userPrefsStorage);
 
-        initLogging(config);
-
         model = initModelManager(storage, userPrefs);
 
         logic = new LogicManager(model, storage);