style: add end of line rule

Author: nishantwrp

.eslintrc

@@ -9,6 +9,7 @@
   ],
   "rules": {
     "indent": ["error", 4],
-    "quotes": ["error", "double"]
+    "quotes": ["error", "double"],
+    "eol-last": ["error", "always"]
   }
 }

package.json

@@ -5,7 +5,7 @@
     "dist": "webpack --joplin-plugin-config buildMain && webpack --joplin-plugin-config buildExtraScripts && webpack --joplin-plugin-config createArchive",
     "prepare": "npm run dist",
     "update": "npm install -g generator-joplin && yo joplin --update",
-    "lint": "eslint src"
+    "lint": "eslint 'src/**/*'"
   },
   "license": "MIT",
   "keywords": [

src/manifest.json

@@ -9,4 +9,4 @@
     "homepage_url": "https://github.com/joplin/plugin-templates",
     "repository_url": "https://github.com/joplin/plugin-templates",
     "keywords": []
-}
+}