Added support for user timezones and user browser timezone by default (incomplete) (#13626)

* Added support for user timezones and user browser timezone byt default

* Formatting fixes

* Use the timezone for alert log display

also added validation for the timezone because it's being used in SQL.

* Formatting fixes

* Added return type

* Formatting"

* Update the latency graphs to use the user timezone

* Simplify the web routes config

* Update phpstan to ignore type error

* Fixed up the phpstan config

* Reverse phpstan change

* Re-apply phpstan override

* Remove the option to unset the session timezone

* Formatting fix

* Update outge and event logs to use session timezone

* Fix route for the timezone control

* Made the timezone more dynamic

* Fix a logic error that was stopping the timezone from being set automatically on login

* Prevent getPref from being called twice

* again prevent getPref double call

* getPref double call

* Fixed typo made during merge

* Fixed merge error in phpstan-baseline.neon

* Change spaces to tabs in phpstan-baseline.neon

* Update error count

---------

Co-authored-by: Tony Murray <murraytony@gmail.com>

html/js/librenms.js

@@ -72,6 +72,22 @@ function submitCustomRange(frmdata) {
     return true;
 }
 
+function updateTimezone(tz, static)
+{
+    $.post(ajax_url + '/set_timezone',
+        {
+            timezone: tz,
+            static: static
+        },
+        function(data) {
+            if(data === tz) {
+                location.reload();
+            }
+        },
+        'text'
+    );
+}
+
 function updateResolution(refresh)
 {
     $.post(ajax_url + '/set_resolution',