housekeeping (#1622)

* replace outdated babel-eslint with typescript-eslint parser

* mark all eslint errors as warnings, for now

* fix commonjs case

* configure basic jest api testing

* a couple tiny tests

* omit unnecessary --project arg

* fix a typescript complaint

* remove unsupported -q flag from node command

* clean up jest/test config and get tests to pass

* fix test env

* fix typo

* add vs code jest command

* improved clarity on this header test

* add vs code workspace config

* remove outdated codeowners config

* remove unused and outdated server.js

* update babel-eslint so eslint can actually run on client-report

* get tests passing without using dotenv

* this file is not necessary

.vscode/polis.code-workspace

@@ -0,0 +1,47 @@
+{
+	"folders": [
+		{
+      "name": "polis-root",
+			"path": ".."
+		},
+    {
+      "name": "client-admin",
+      "path": "../client-admin"
+    },
+    {
+      "name": "client-participation",
+      "path": "../client-participation"
+    },
+    {
+      "name": "client-report",
+      "path": "../client-report"
+    },
+    {
+      "name": "e2e",
+      "path": "../e2e"
+    },
+    {
+      "name": "file-server",
+      "path": "../file-server"
+    },
+    {
+      "name": "math",
+      "path": "../math"
+    },
+    {
+      "name": "server",
+      "path": "../server"
+    },
+  ],
+  "settings": {
+    "jest.disabledWorkspaceFolders": [
+      "polis-root",
+      "client-admin",
+      "client-participation",
+      "client-report",
+      "e2e",
+      "file-server",
+      "math"
+    ]
+  }
+}

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+  "jest.autoRun": "off",
+}