Added in email hosting, and other misc cosmetic fixes

app/Models/Supplier/Email.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Models\Supplier;
+
+use App\Interfaces\SupplierItem;
+use App\Models\Product\Email as ProductEmail;
+
+final class Email extends Type implements SupplierItem
+{
+	protected $table = 'supplier_email';
+
+	/* INTERFACES */
+
+	public function getBillingIntervalAttribute(): int
+	{
+		return 4;	// Yearly
+	}
+
+	public function types()
+	{
+		return $this->belongsToMany(ProductEmail::class,$this->table,'id','id','id',$this->table.'_id');
+	}
+}