added linters and fixed the issues (#169)

* added the rules

* fixed QuickCollapse

* fixed readingtime

* fixed stickyfeeds

* fix const/var quick_collapse_vars

I do not understand why const does not work

* update version number

---------

Co-authored-by: math-gh <>

package.json

@@ -0,0 +1,43 @@
+{
+  "name": "freshrss extensions",
+  "description": "Extensions for FreshRSS",
+  "homepage": "https://freshrss.org/",
+  "readmeFilename": "README.md",
+  "bugs": {
+    "url": "https://github.com/FreshRSS/Extensions/issues"
+  },
+  "keywords": [
+    "freshrss",
+    "extensions"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/FreshRSS/Extensions.git"
+  },
+  "license": "see each extension",
+  "engines": {
+    "node": ">=12"
+  },
+  "scripts": {
+    "eslint": "eslint --ext .js .",
+    "eslint_fix": "eslint --fix --ext .js .",
+    "markdownlint": "markdownlint '**/*.md'",
+    "markdownlint_fix": "markdownlint --fix '**/*.md'",
+    "stylelint": "stylelint '**/*.css' && stylelint --custom-syntax postcss-scss '**/*.scss'",
+    "stylelint_fix": "stylelint --fix '**/*.css' && stylelint --fix --custom-syntax postcss-scss '**/*.scss'",
+    "test": "npm run eslint && npm run stylelint && npm run markdownlint",
+    "fix": "npm run rtlcss && npm run stylelint_fix && npm run eslint_fix && npm run markdownlint_fix"
+  },
+  "devDependencies": {
+    "eslint": "^8.45.0",
+    "eslint-config-standard": "^17.1.0",
+    "eslint-plugin-import": "^2.27.5",
+    "eslint-plugin-n": "^16.0.1",
+    "eslint-plugin-promise": "^6.1.1",
+    "markdownlint-cli": "^0.35.0",
+    "sass": "^1.63.6",
+    "stylelint": "^15.10.2",
+    "stylelint-config-recommended-scss": "^12.0.0",
+    "stylelint-order": "^6.0.3"
+  }
+}