Add pre-commit hooks

See https://pre-commit.com/ for more information.

.pre-commit-config.yaml

+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v2.0.0
+  hooks:
+    - id: end-of-file-fixer
+    - id: mixed-line-ending
+    - id: trailing-whitespace

locale/it.txt

@@ -18,4 +18,4 @@ Silver = Argento
 Gold = Oro
 Mithril = Mithril
 
-Copper Rail = Binario di rame
\ No newline at end of file
+Copper Rail = Binario di rame