Update to dynamic viewport units and bump cache version

Author: antonmedv

index.html

@@ -32,7 +32,7 @@
     outline: none;
     padding: 18px max(18px, calc(50vw - 400px));
     width: 100%;
-    min-height: 100vh;
+    min-height: 100dvh;
     font: 18px / 1.5 system-ui;
     tab-size: 4;
     white-space: pre-wrap;

sw.js

@@ -1,4 +1,4 @@
-const CACHE_NAME = 'textarea-v1'
+const CACHE_NAME = 'textarea-v2'
 const ASSETS = [
   '/',
   '/qr',