Desktop support (#4484)

* Remove home link on desktop app

* Spellcheck, installation toasts, background styling, …

* Add email,slack, auth support

* More desktop style tweaks

* Move redirect to client

* cleanup

* Record desktop usage

* docs

* fix: Selection state in search input when double clicking header

app/utils/browser.ts

@@ -12,8 +12,14 @@ export function isTouchDevice(): boolean {
  * Returns true if the client is running on a Mac.
  */
 export function isMac(): boolean {
-  const SSR = typeof window === "undefined";
-  return !SSR && window.navigator.platform === "MacIntel";
+  return window.navigator.platform === "MacIntel";
+}
+
+/**
+ * Returns true if the client is running on Windows.
+ */
+export function isWindows(): boolean {
+  return window.navigator.platform === "Win32";
 }
 
 let supportsPassive = false;