Switch to TypeORM's DataSource API (#299)

- Switch to TypeORM's DataSource API, rather than using the now deprecated ormconfig.json
- This will fix stage deployment not knowing how to deploy the database migrations

#297

> **NOTE:** This change requires the deployment scripts to be updated, please update them on the server before merging

Co-authored-by: Ethan Lane <ethan@vylpes.com>
Reviewed-on: https://gitea.vylpes.xyz/RabbitLabs/vylbot-app/pulls/299

src/database/entities/Server.ts

@@ -0,0 +1,27 @@
+import { Entity, OneToMany } from "typeorm";
+import BaseEntity from "../../contracts/BaseEntity";
+import Role from "./Role";
+import Setting from "./Setting";
+
+@Entity()
+export default class Server extends BaseEntity {
+    constructor(serverId: string) {
+        super();
+
+        this.Id = serverId;
+    }
+
+    @OneToMany(() => Setting, x => x.Server)
+    Settings: Setting[];
+
+    @OneToMany(() => Role, x => x.Server)
+    Roles: Role[];
+
+    public AddSettingToServer(setting: Setting) {
+        this.Settings.push(setting);
+    }
+
+    public AddRoleToServer(role: Role) {
+        this.Roles.push(role);
+    }
+}