Implement membership notifications and deep-link handling for Electron desktop app (#246)

* security: add cors for desktop app scheme

* Revert "security: add cors for desktop app scheme"

This reverts commit d450fced75.

* ignore tags

* add commands for windows dev

* cleanup unnecessary parts of main desktop process

* resolve lint errors

* add format command for go

* fix: send email on new member joining

Closes #228

* add proper deeplinking on desktop

The desktop app was merely focusing before, but now it will navigate to the proper route

* honor email notifications setting

* prevent sending email when no recipients

js/desktop/src/electron.d.ts

@@ -44,6 +44,10 @@ declare global {
       stop: () => void;
       onInit: (callback: () => void) => () => void;
     };
+    electronDeepLink: {
+      getPending: () => Promise<string | null>;
+      onNavigate: (callback: (path: string) => void) => () => void;
+    };
     electronLink: {
       openExternal: (url: string) => Promise<void>;
     };