Move some files around to where they should be

src/types/VersionsConfig.ts

@@ -0,0 +1,17 @@
+export type VersionsConfigData = {
+  version: string
+  list: Record<string, number>
+}
+
+export class VersionsConfig {
+  constructor (
+    public version: string,
+    public list: Record<string, number> = {}
+  ) {}
+
+  static import (data: VersionsConfigData) {
+    const cfg = new VersionsConfig(data.version)
+    cfg.list = { ...data.list }
+    return cfg
+  }
+}