Add documentation, pre-commit hook, more make commands and

src/auto_archiver/modules/gsheet_feeder_db/__manifest__.py

@@ -12,9 +12,7 @@
             "default": None,
             "help": "the id of the sheet to archive (alternative to 'sheet' config)",
         },
-        "header": {"default": 1,
-                   "help": "index of the header row (starts at 1)",
-                   "type": "int"},
+        "header": {"default": 1, "help": "index of the header row (starts at 1)", "type": "int"},
         "service_account": {
             "default": "secrets/service_account.json",
             "help": "service account JSON file path. Learn how to create one: https://gspread.readthedocs.io/en/latest/oauth2.html",