profiles: do not cache avatars in LRC

This reduces memory usage.

Change-Id: Iddb54a844ffacfc96b7758b2a9317e68e04750c4

src/mainapplication.cpp

@@ -315,6 +315,7 @@ MainApplication::loadTranslations()
 void
 MainApplication::initLrc(const QString& downloadUrl, ConnectivityMonitor* cm, bool logDaemon)
 {
+    lrc::api::Lrc::cacheAvatars.store(false);
     /*
      * Init mainwindow and finish splash when mainwindow shows up.
      */

src/utils.cpp

@@ -357,7 +357,7 @@ Utils::contactPhoto(LRCInstance* instance,
         auto& accInfo = instance->accountModel().getAccountInfo(
             accountId.isEmpty() ? instance->get_currentAccountId() : accountId);
         auto contactInfo = accInfo.contactModel->getContact(contactUri);
-        auto contactPhoto = contactInfo.profileInfo.avatar;
+        auto contactPhoto = accInfo.contactModel->avatar(contactUri);
         auto bestName = accInfo.contactModel->bestNameForContact(contactUri);
         if (accInfo.profileInfo.type == profile::Type::SIP
             && contactInfo.profileInfo.type == profile::Type::TEMPORARY) {