logger: show message popup for log_fatal (#412)

## Link to GitHub Issue, if one exists
#410 

## Description of change
When raising fatal errors via `log_fatal`, also show a modal popup.

Update instances of `log_fatal` where the message was too long to fit.

## Testing
Tested various failure conditions.

src/spice2x/avs/ea3.cpp

@@ -150,7 +150,9 @@ namespace avs {
                         "    * Do NOT copy over random DLLs from another game installation; DLL must match game version\n"
                         "\n"
                     , DLL_NAME, MODULE_PATH.string()) };
-                    log_fatal("avs-ea3", "{}", info_str);
+                    
+                    log_warning("avs-ea3", "{}", info_str);
+                    log_fatal("avs-ea3", "Failed to find critical ea3 DLL on disk (avs2-ea3.dll OR {})", DLL_NAME);
                 }
             }