feat: Tax included (#370)

* feat: Tax included

* Added a toggle switch in tax settings to enable the feature.
* Database migration adding tax_included field into estimates, invoices
  and recurring invoices table.
* Toggle switch to enable and store the tax_included by estimates,
  invoices and recurring invoices.
* In case of tax included enabled, total taxes will be recalculated and
  the invoices, estimates and recurring invoices total won't be sum with
  taxes.
* Apply tax included when discount_per_item/tax_per_item item is enabled.
* Custom component to show the net total when tax included is enabled.
* Update invoice and estimates pdfs with net total.

* chore: Tax included by default

A switch button inside the tax settings to enable the tax included by
default in invoices, estimates and recurring invoices.

resources/scripts/admin/components/estimate-invoice-common/CreateTotalTaxes.vue

@@ -42,6 +42,10 @@ const props = defineProps({
     type: Object,
     default: null,
   },
+  storeProp: {
+    type: String,
+    default: '',
+  },
   data: {
     type: String,
     default: '',
@@ -64,6 +68,13 @@ const taxAmount = computed(() => {
         100
     )
   }
+  if (props.store.getSubtotalWithDiscount && props.tax.percent && props.store[props.storeProp].tax_included) {
+    return Math.round(
+      props.store.getSubtotalWithDiscount - (
+        props.store.getSubtotalWithDiscount / (1 + (props.tax.percent / 100))
+      )
+    )
+  }
   if (props.store.getSubtotalWithDiscount && props.tax.percent) {
     return Math.round(
       (props.store.getSubtotalWithDiscount * props.tax.percent) / 100
@@ -81,6 +92,13 @@ watchEffect(() => {
   }
 })
 
+watch(
+  () => props.store[props.storeProp].tax_included,
+  (val) => {
+    updateTax()
+  }, { deep: true },
+)
+
 function updateTax() {
   emit('update', {
     ...props.tax,