added logic for stranger notification setting

made page content refreshes happen on visibility

static-data/www/board/autorefresh.js

@@ -34,4 +34,11 @@ function setupInterval(){
 var refreshInterval = setInterval(autoRefresh, 3000)
 setupInterval()
 
-checkbox.onchange = function(){setupInterval}
+checkbox.onchange = function(){setupInterval}
+
+
+document.addEventListener("visibilitychange", function() {
+    if (document.visibilityState === 'visible') {
+      autoRefresh()
+    }
+  })

static-data/www/mail/mail.js

@@ -441,4 +441,10 @@ setActiveTab('inbox')
 setInterval(function(){mailPing()}, 10000)
 mailPing()
 window.inboxInterval = setInterval(function(){refreshPms(true)}, 3000)
-refreshPms(true)
+refreshPms(true)
+
+document.addEventListener("visibilitychange", function() {
+    if (document.visibilityState === 'visible') {
+        refreshPms()
+    }
+  })

static-data/www/shared/main/stats.js

@@ -136,5 +136,11 @@ var getStats = function(){
         })
 }
 
+document.addEventListener("visibilitychange", function() {
+    if (document.visibilityState === 'visible') {
+      getStats()
+    }
+  })
+
 getStats()
-setInterval(function(){getStats()}, 10000)
+setInterval(function(){getStats()}, 1000)