added path lowercase to ModFile

src/main.rs

@@ -28,9 +28,11 @@ struct ModFile {
 impl ModFile {
     #[inline]
     pub fn new_from_installer(file: FileType) -> Self {
+        let dest: PathBuf = file.destination.unwrap_or_default().into();
+
         ModFile {
             source: file.source.into(),
-            dest: file.destination.unwrap_or_default().into(),
+            dest: Self::path_to_lowercase(&dest),
             internal_priority: file.priority.unwrap_or(0),
         }
     }
@@ -61,6 +63,10 @@ impl ModFile {
             }
         }
     }
+
+    fn path_to_lowercase(path: &Path) -> PathBuf {
+        PathBuf::from(path.to_string_lossy().to_lowercase())
+    }
 }
 
 pub fn walk_files_recursive(