logging: Fix log filter during initialization

The log filter was being ignored on initialization due to the logging instance being initialized before the config instance, so the log filter was set to its default value.

This fixes that oversight, along with using descriptive exceptions instead of abort() calls.

src/common/logging/backend.cpp

@@ -5,6 +5,7 @@
 #include <atomic>
 #include <chrono>
 #include <climits>
+#include <exception>
 #include <thread>
 #include <vector>
 
@@ -152,7 +153,7 @@ public:
     void EnableForStacktrace() override {}
 };
 
-bool initialization_in_progress_suppress_logging = false;
+bool initialization_in_progress_suppress_logging = true;
 
 /**
  * Static state as a singleton.
@@ -161,17 +162,17 @@ class Impl {
 public:
     static Impl& Instance() {
         if (!instance) {
-            abort();
+            throw std::runtime_error("Using Logging instance before its initialization");
         }
         return *instance;
     }
 
     static void Initialize() {
         if (instance) {
-            abort();
+            LOG_WARNING(Log, "Reinitializing logging backend");
+            return;
         }
         using namespace Common::FS;
-        initialization_in_progress_suppress_logging = true;
         const auto& log_dir = GetYuzuPath(YuzuPath::LogDir);
         void(CreateDir(log_dir));
         Filter filter;