fix: change log message on skip.

It was confusing, now it is less confusing.

src/main.rs

@@ -38,7 +38,7 @@ fn main() {
         );
 
         if job.check_if_exists() {
-            info!("Skipping file {} because it already exists.", job.output);
+            info!("Skipping conversion for {} to {} as the output file already exists.", job.input, job.output);
             continue;
         }