fix: use G_LOG_LEVEL_CRITICAL instead of error

G_LOG_LEVEL_ERROR causes the program to abort, which is not intended.

src/main.zig

@@ -28,7 +28,7 @@ fn LogStruct(c: anytype, comptime module_name: []const u8, comptime buf_size: us
             };
 
             const g_level = switch (level) {
-                .err => c.G_LOG_LEVEL_ERROR,
+                .err => c.G_LOG_LEVEL_CRITICAL,
                 .warn => c.G_LOG_LEVEL_WARNING,
                 .info => c.G_LOG_LEVEL_INFO,
                 .debug => c.G_LOG_LEVEL_DEBUG,