feat:add registration management with token-based access

Add management tokens to registrations allowing users to view, edit, and
cancel their registration via a unique URL. Implement email
notifications
for confirmations, updates, and cancellations using nodemailer. Simplify
art forms grid from 6 to 4 items and remove trajectory links. Translate
footer links to Dutch and fix matzah spelling in info section.

packages/db/src/migrations/meta/_journal.json

@@ -1,13 +1,20 @@
 {
-  "version": "7",
-  "dialect": "sqlite",
-  "entries": [
-    {
-      "idx": 0,
-      "version": "6",
-      "when": 1772480169471,
-      "tag": "0000_mean_sunspot",
-      "breakpoints": true
-    }
-  ]
-}
+	"version": "7",
+	"dialect": "sqlite",
+	"entries": [
+		{
+			"idx": 0,
+			"version": "6",
+			"when": 1772480169471,
+			"tag": "0000_mean_sunspot",
+			"breakpoints": true
+		},
+		{
+			"idx": 1,
+			"version": "6",
+			"when": 1772480778632,
+			"tag": "0001_third_stark_industries",
+			"breakpoints": true
+		}
+	]
+}