✨(frontend) add utils to determine user's browser

Copied from LiveKit utils functions.
Using LiveKit client, determine whether the user's browser is
Safari, chromium based, or firefox.

src/frontend/src/utils/livekit.ts

@@ -1,5 +1,17 @@
-import { LogLevel, setLogLevel } from 'livekit-client'
+import { getBrowser, LogLevel, setLogLevel } from 'livekit-client'
 
 export const silenceLiveKitLogs = (shouldSilenceLogs: boolean) => {
   setLogLevel(shouldSilenceLogs ? LogLevel.silent : LogLevel.debug)
 }
+
+export function isFireFox(): boolean {
+  return getBrowser()?.name === 'Firefox'
+}
+
+export function isChromiumBased(): boolean {
+  return getBrowser()?.name === 'Chrome'
+}
+
+export function isSafari(): boolean {
+  return getBrowser()?.name === 'Safari'
+}