Makes dynamic configuration work in production

If a static file is mounted in the Docker image, it will be read at
each page load and sent to the client.

package-lock.json

@@ -8,7 +8,8 @@
 			"name": "flanders",
 			"version": "0.0.1",
 			"dependencies": {
-				"dotenv": "^16.3.1"
+				"dotenv": "^16.3.1",
+				"js-yaml": "^4.1.0"
 			},
 			"devDependencies": {
 				"@modyfi/vite-plugin-yaml": "^1.0.4",
@@ -1322,8 +1323,7 @@
 		"node_modules/argparse": {
 			"version": "2.0.1",
 			"resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
-			"integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
-			"dev": true
+			"integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="
 		},
 		"node_modules/aria-query": {
 			"version": "5.3.0",
@@ -2443,7 +2443,6 @@
 			"version": "4.1.0",
 			"resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
 			"integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
-			"dev": true,
 			"dependencies": {
 				"argparse": "^2.0.1"
 			},