Sentry: add Soapbox context

src/sentry.ts

@@ -1,3 +1,5 @@
+import sourceCode from 'soapbox/utils/code';
+
 import type { Account } from './schemas';
 
 /** Start Sentry. */
@@ -36,6 +38,8 @@ async function startSentry(dsn: string): Promise<void> {
     // for finer control
     tracesSampleRate: 1.0,
   });
+
+  Sentry.setContext('soapbox', sourceCode);
 }
 
 /** Associate the account with Sentry events. */
@@ -45,6 +49,7 @@ async function setSentryAccount(account: Account) {
   Sentry.setUser({
     id: account.id,
     username: account.acct,
+    url: account.url,
   });
 }