show and hide things based on ios, add button for installing PWA

src/Components/Misc/InstallPWAButton.tsx

@@ -0,0 +1,45 @@
+import { useEffect, useRef, useState } from 'react';
+import { BeforeInstallPromptEvent } from '../../global';
+import { useAnalytics } from '../../Hooks/useAnalytics';
+
+export const InstallPWA = () => {
+  const supportsPWARef = useRef<boolean>(false);
+  const [promptInstall, setPromptInstall] =
+    useState<BeforeInstallPromptEvent | null>(null);
+
+  const analytics = useAnalytics();
+
+  const handler = (e: BeforeInstallPromptEvent) => {
+    e.preventDefault();
+    supportsPWARef.current = true;
+    setPromptInstall(e);
+  };
+
+  useEffect(() => {
+    window.addEventListener('beforeinstallprompt', handler);
+
+    return () => window.removeEventListener('transitionend', handler);
+  }, []);
+
+  if (!supportsPWARef.current) {
+    return 'lull';
+  }
+
+  return (
+    <button
+      className="mt-1 mb-1 bg-primary-main px-3 py-1 rounded-md duration-200 ease-in-out shadow-[1px_2px_4px_0px_rgba(0,0,0,0.3)] hover:bg-primary-dark font-bold"
+      aria-label="Install app"
+      title="Install app"
+      onClick={(e) => {
+        e.preventDefault();
+        if (!promptInstall) {
+          return;
+        }
+        analytics.trackEvent('install_pwa_prompt_shown');
+        promptInstall.prompt();
+      }}
+    >
+      Install as a PWA
+    </button>
+  );
+};