fix: mobile browser button row visibility

Author: fangfufu

www/index.css

@@ -90,7 +90,7 @@ body {
   font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
   background-color: var(--bg-main);
   color: var(--text-primary);
-  height: 100vh;
+  height: 100dvh;
   width: 100vw;
   overflow: hidden;
   display: flex;
@@ -138,7 +138,7 @@ body.state-bell {
 /* Main Container */
 #app {
   width: 100%;
-  height: 100vh;
+  height: 100dvh;
   display: flex;
   flex-direction: column;
   align-items: center;
@@ -214,7 +214,7 @@ p.subtitle {
   display: flex;
   flex-direction: column;
   gap: 0;
-  max-height: calc(100vh - 350px);
+  max-height: calc(100dvh - 350px);
   overflow-y: auto;
   margin-bottom: 1rem;
   padding-right: 0.5rem;
@@ -737,7 +737,7 @@ button#back-btn:hover {
 
   body,
   #app {
-    height: 100vh !important;
+    height: 100dvh !important;
     overflow: hidden !important;
   }
 
@@ -749,12 +749,12 @@ button#back-btn:hover {
   #summary-view {
     width: 100% !important;
     height: 100% !important;
-    min-height: 100vh !important;
+    min-height: 100dvh !important;
     max-width: none !important;
     border: none !important;
     border-radius: 0 !important;
     box-shadow: none !important;
-    padding: 1.25rem 0.75rem 0 0.75rem !important;
+    padding: 1.25rem 0.75rem 1.25rem 0.75rem !important;
     backdrop-filter: none !important;
     -webkit-backdrop-filter: none !important;
     margin: 0 !important;

www/sw.js

@@ -1,4 +1,4 @@
-const CACHE_NAME = 'tm-timer-v37';
+const CACHE_NAME = 'tm-timer-v44';
 const ASSETS = [
   './',
   './index.html',