added open service logs to logs page (#951)

* added open service logs to logs page
* redesign of log saving buttons
* hide service logs buttons for mobile platforms
* refactoring: moved logger to common folder
* feature: added the ability to enable logs to the start screen

client/settings.cpp

@@ -227,7 +227,7 @@ void Settings::setSaveLogs(bool enabled)
     if (!isSaveLogs()) {
         Logger::deInit();
     } else {
-        if (!Logger::init()) {
+        if (!Logger::init(false)) {
             qWarning() << "Initialization of debug subsystem failed";
         }
     }