fast path for copy (#2548)

* fast copy

* ruff first

* flat_mv on malloc

* order + webgpu test

.pre-commit-config.yaml

@@ -7,18 +7,18 @@ repos:
         language: system
         always_run: true
         pass_filenames: false
-      - id: mypy
-        name: mypy
-        entry: mypy tinygrad/ extra/helpers.py
-        language: system
-        always_run: true
-        pass_filenames: false
       - id: ruff
         name: ruff
         entry: ruff . --preview
         language: system
         always_run: true
         pass_filenames: false
+      - id: mypy
+        name: mypy
+        entry: mypy tinygrad/ extra/helpers.py
+        language: system
+        always_run: true
+        pass_filenames: false
       - id: docs
         name: docs
         entry: python3 docs/abstractions.py