Feature/search highlights backend (#395)

* add highlight mappings

* return highlight in resolvers

* temporarily skip highlight tests

* add test for getting highlights

* update merge highlight

* separate elastic methods

* roll back merge highlight test

* add highlight to elastic script

* update delete highlight in elastic

* migrate highlight data from postgres to elastic

* rescue not found exception when page is not found in the migration script

* exclude highlights in searching pages results

* search pages with highlights only with has:highlight query

* add search endpoint to search pages or highlights

* reduce code smell in search api

* fix rebase error

* fix tests

* add test for search highlight

* add test for new search endpoint

* add labels to search results

* update schema

* update search query

* fix update/share highlights

* fix rebase error

* fix tests

* add highlight model in elastic

* add savedAt and publishedAt date range in search query

* add sort by updated and recently read

* fix tests

* close db connection when tests are done

* test github action

* revert github action test

* fix rebase error

* add docker-compose for api-test

* remove unused env

* remove highlights with no page attached to

* allow get_articles resolver to search for query so we can merge it without web changes

packages/api/package.json

@@ -8,7 +8,7 @@
     "start": "node dist/server.js",
     "lint": "eslint src --ext ts,js,tsx,jsx",
     "lint:fix": "eslint src --fix --ext ts,js,tsx,jsx",
-    "test": "nyc mocha -r ts-node/register --config mocha-config.json --exit --timeout 10000"
+    "test": "nyc mocha -r ts-node/register --config mocha-config.json --timeout 10000"
   },
   "dependencies": {
     "@elastic/elasticsearch": "~7.12.0",