#22 - vacation calendar (#51)

* change layout

* change layout

* #22 - wip

* wip

* wip

* #22 - wip

* #22 - wip

* #22 - wip

* #22 - wip

* #22 - fix

* #22 - wip

* #22 - added some tests

* #22 - wip

* #22 - wip

* #22 - fix

* #22 - wip

* #22 - wip

* #22 - wip

* #22 - fix

* #22 - fix

* #22 - fix

* #22 - fix

* #22 - fix

* #22 - fix

* #22 - cr fixes

* #22 - cr fix

Co-authored-by: EwelinaLasowy <ewelina.lasowy@blumilk.pl>

app/Domain/VacationDaysCalculator.php

@@ -16,7 +16,7 @@ class VacationDaysCalculator
         $period = CarbonPeriod::create($from, $to);
         $holidays = $yearPeriod->holidays()->pluck("date");
 
-        $validDays = collect();
+        $validDays = new Collection();
 
         foreach ($period as $day) {
             if ($this->passes($day, $holidays)) {