impr: Better recovery from exceptions thrown in main thread (#1577)

This PR improves many things which can be seen by the commit name, but
the most important thing is the addition of a popup telling the user
when an exception is thrown

![image](https://github.com/WerWolv/ImHex/assets/42669835/db796416-9cce-4aa5-ad60-c22f05b5fc73)

plugins/builtin/source/content/events.cpp

@@ -21,6 +21,7 @@
 #include <popups/popup_question.hpp>
 #include <content/popups/popup_tasks_waiting.hpp>
 #include <content/popups/popup_unsaved_changes.hpp>
+#include <content/popups/popup_crash_recovered.hpp>
 
 namespace hex::plugin::builtin {
 
@@ -48,6 +49,10 @@ namespace hex::plugin::builtin {
     void registerEventHandlers() {
 
         static bool imhexClosing = false;
+        EventCrashRecovered::subscribe([](const std::exception &e) {
+            PopupCrashRecovered::open(e);
+        });
+
         EventWindowClosing::subscribe([](GLFWwindow *window) {
             imhexClosing = false;
             if (ImHexApi::Provider::isDirty() && !imhexClosing) {