Check for Countly before using it

src/utils/analytics.ts

@@ -2,14 +2,14 @@
 
 // Send page
 export const sendPage = (path: string) => {
-    if (Countly) {
+    if (typeof Countly !== 'undefined') {
         Countly.track_pageview()
     }
 }
 
 // Send event
 export const sendEvent = ({ action, segments = {}, amount = 1 }) => {
-    if (Countly) {
+    if (typeof Countly !== 'undefined') {
         Countly.add_event({
             key: action,
             count: amount,