add first cut at deep-link redirecting, with one example contact-import that works on mobile

src/utils/logger.ts

@@ -1,6 +1,6 @@
 import { logToDb } from "../db/databaseUtil";
 
-function safeStringify(obj: unknown) {
+export function safeStringify(obj: unknown) {
   const seen = new WeakSet();
 
   return JSON.stringify(obj, (_key, value) => {
@@ -67,8 +67,9 @@ export const logger = {
     // Errors will always be logged
     // eslint-disable-next-line no-console
     console.error(message, ...args);
-    const argsString = args.length > 0 ? " - " + safeStringify(args) : "";
-    logToDb(message + argsString);
+    const messageString = safeStringify(message);
+    const argsString = args.length > 0 ? safeStringify(args) : "";
+    logToDb(messageString + argsString);
   },
 };