improve conversation view

Change-Id: I63189d0b61d45e659ac7618a977282f7b4500753
diff --git a/client/src/index.ejs b/client/src/index.ejs
index f1cd060..aee5126 100644
--- a/client/src/index.ejs
+++ b/client/src/index.ejs
@@ -4,7 +4,7 @@
 <head>
   <meta charset="utf-8" />
   <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
-  <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <meta name="viewport" content="minimum-scale=1, initial-scale=1, width=device-width" />
   <meta name="theme-color" content="#000000" />
   <meta name="description" content="Web site created using create-react-app" />
   <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />