lint during CI

.github/workflows/ci.yml

@@ -16,3 +16,9 @@ jobs:
     - run: 'npm i && npm test'
       env:
         CI: true
+  Lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/setup-node@v1
+    - run: 'npm i && npm run lint'

site/.eslintrc.js

@@ -47,6 +47,12 @@ module.exports = {
 	},
 	settings: {
 		'import/core-modules': ['svelte'],
-		'svelte3/compiler': require('svelte/compiler')
+		'svelte3/compiler': (() => {
+			try {
+				return require('svelte/compiler');
+			} catch (e) {
+				return null;
+			}
+		})()
 	}
 };