chore: remove ejs and nodemon

neither is used now that we're using poi and building a static site with
it

packages/search-site/package.json

@@ -16,7 +16,6 @@
     "cjs": true
   },
   "dependencies": {
-    "ejs": "^2.6.1",
     "esm": "^3.0.82",
     "lunr": "^2.3.3",
     "mitt": "^1.1.3",
@@ -29,7 +28,6 @@
     "babel-eslint": "^9.0.0",
     "eslint-plugin-vue": "^4.7.1",
     "firebase-tools": "^4.2.1",
-    "nodemon": "^1.18.4",
     "poi": "^10.2.10"
   }
 }