Update go.mod to 1.22

go.mod

@@ -1,3 +1,5 @@
 module deadbeef.codes/steven/ynab-portfolio-monitor
 
-go 1.21.4
+go 1.22
+
+// Goal is no third party dependencies

webServer.go

@@ -35,6 +35,8 @@ func homePageHandler(w http.ResponseWriter, r *http.Request) {
 	//http.Redirect(w, r, fmt.Sprintf("https://app.ynab.com/%s", ynabClient.BudgetID), http.StatusSeeOther)
 }
 
+// Returns status 200 if a refresh is not running, otherwise waits for refresh to finish
+// Can be used by clients to tell when a refresh finishes
 func statusHandler(w http.ResponseWriter, r *http.Request) {
 	refreshRunning.Lock()
 	w.WriteHeader(http.StatusOK)