#116 - integration with slack (#129)

* wip

* wip

* wip

* wip

* fix

* wip

* wip

* fix

* fix

* cs fix

* #116 - fix

* #116 - changed home-office icon

* Apply suggestions from code review

Co-authored-by: Krzysztof Rewak <krzysztof.rewak@gmail.com>

* #116 - cr fix

* #116 - cs fix

* #116 - cs fix

* Apply suggestions from code review

Co-authored-by: Ewelina Lasowy <56546832+EwelinaLasowy@users.noreply.github.com>

* #5 - bump codestyle

Co-authored-by: EwelinaLasowy <ewelina.lasowy@blumilk.pl>
Co-authored-by: Krzysztof Rewak <krzysztof.rewak@gmail.com>
Co-authored-by: Ewelina Lasowy <56546832+EwelinaLasowy@users.noreply.github.com>

app/Eloquent/Models/Holiday.php

@@ -21,7 +21,6 @@ class Holiday extends Model
     use HasFactory;
 
     protected $guarded = [];
-
     protected $casts = [
         "date" => "date",
     ];