Refactored and fixed:

- Refactored, linted, fixed potential problems, enabled 'use strict'

Fixed:
- Added "Enable plugin synchronization" option
(Plugins and settings had been run always)

Implemented:
- Sync preset implemented.
- "Check integrity on saving" implemented.
- "Sanity check" implemented
It's mainly for debugging.

package.json

@@ -1,11 +1,12 @@
 {
     "name": "obsidian-livesync",
-    "version": "0.1.26",
+    "version": "0.1.27",
     "description": "Reflect your vault changes to some other devices immediately. Please make sure to disable other synchronize solutions to avoid content corruption or duplication.",
     "main": "main.js",
     "scripts": {
         "dev": "rollup --config rollup.config.js -w",
-        "build": "rollup --config rollup.config.js --environment BUILD:production"
+        "build": "rollup --config rollup.config.js --environment BUILD:production",
+        "lint": "eslint src"
     },
     "keywords": [],
     "author": "vorotamoroz",
@@ -16,6 +17,11 @@
         "@rollup/plugin-typescript": "^8.2.1",
         "@types/diff-match-patch": "^1.0.32",
         "@types/pouchdb-browser": "^6.1.3",
+        "@typescript-eslint/eslint-plugin": "^5.7.0",
+        "@typescript-eslint/parser": "^5.0.0",
+        "eslint": "^7.32.0",
+        "eslint-config-airbnb-base": "^14.2.1",
+        "eslint-plugin-import": "^2.25.2",
         "obsidian": "^0.12.0",
         "rollup": "^2.32.1",
         "tslib": "^2.2.0",