[skip ci] dev: add scripts and description how to test plugins locally (#1601)

* add scripts and description how to test plugins locally

* add serve as an explicit dependency

package.json

@@ -11,8 +11,9 @@
     "generate": "node ./scripts/multisrc/generate.js",
     "host-linux": "chmod +x ./host.sh && ./host.sh",
     "host-windows": "powershell ./host.ps1",
+    "host-dev": "npx tsc --project tsconfig.production.json && node --env-file=.env ./scripts/json_plugins.js && serve",
     "icons": "npm run clearMultisrc && npm run generate && npx tsc --project tsconfig.production.json && npm run json && node ./scripts/icon_reloading.js",
-    "json": " node ./scripts/json_plugins.js",
+    "json": "node ./scripts/json_plugins.js",
     "lint": "npx eslint .",
     "prepare": "husky install",
     "prettier": "prettier --write \"./**/*.{js,ts}\"",
@@ -58,6 +59,7 @@
     "react-virtuoso": "^4.12.2",
     "react-window": "^1.8.10",
     "sanitize-html": "^2.13.1",
+    "serve": "^14.2.4",
     "typescript-eslint": "^7.14.1",
     "urlencode": "^2.0.0",
     "vite": "^5.2.0",