FEAT: precommit git hooks, based on fusions #913 (#1645)

* init commit for precommit

* some reformatting precommit does

.pre-commit-config.yaml

@@ -0,0 +1,42 @@
+exclude: '^lnbits/static/bundle.*|^docs/.*|^lnbits/static/vendor/.*|^lnbits/extensions/.*|^lnbits/wallets/lnd_grpc_files/.*|^package-lock.json$'
+
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.3.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-added-large-files
+      - id: check-docstring-first
+      - id: check-json
+      - id: debug-statements
+      - id: mixed-line-ending
+      - id: check-case-conflict
+  - repo: https://github.com/psf/black
+    rev: 22.6.0
+    hooks:
+      - id: black
+  - repo: https://github.com/pycqa/isort
+    rev: 5.12.0
+    hooks:
+      - id: isort
+        args: ['--profile', 'black']
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: '50c5478ed9e10bf360335449280cf2a67f4edb7a'
+    hooks:
+      - id: prettier
+        args: ['lnbits']
+  - repo: https://github.com/pycqa/flake8
+    rev: 6.0.0
+    hooks:
+      - id: flake8
+        entry: poetry run flake8
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v0.971
+    hooks:
+      - id: mypy
+        name: mypy
+        entry: poetry run mypy
+        args: [--ignore-missing-imports]
+        additional_dependencies: [types-mock, types-protobuf]