refactor: we go rusty

src/backup/manager.rs

@@ -25,18 +25,18 @@ where
     const METADATA_FILE: &str = "alex.json";
 
     /// Initialize a new instance of a `BackupManager`.
-    pub fn new(
-        backup_dir: PathBuf,
-        config_dir: PathBuf,
-        world_dir: PathBuf,
+    pub fn new<P1: Into<PathBuf>, P2: Into<PathBuf>, P3: Into<PathBuf>>(
+        backup_dir: P1,
+        config_dir: P2,
+        world_dir: P3,
         metadata: T,
         chain_len: u64,
         chains_to_keep: u64,
     ) -> Self {
         Self {
-            backup_dir,
-            config_dir,
-            world_dir,
+            backup_dir: backup_dir.into(),
+            config_dir: config_dir.into(),
+            world_dir: world_dir.into(),
             default_metadata: metadata,
             chain_len,
             chains_to_keep,