refactor(fix): move vars to correct file

mc-hetzner.tf

@@ -8,6 +8,35 @@ terraform {
     }
 }
 
+variable "hcloud_token" {
+  type = string
+  sensitive = true
+}
+
+variable "server_name" {
+  type        = string
+  default     = "mc-hetzner"
+  description = "Name of the server."
+}
+
+variable "server_image" {
+  type        = string
+  default     = "ubuntu-22.04"
+  description = "Image for the server."
+}
+
+variable "server_type" {
+  type        = string
+  default     = "cx21"
+  description = "The type of server to deploy."
+}
+
+variable "server_location" {
+  type        = string
+  default     = "nbg1"
+  description = "The location to deploy the server."
+}
+
 provider "hcloud" {
   token = var.hcloud_token
 }