fix backslash breaking path selection

lib/TypeValidation/PathType.ts

@@ -20,14 +20,16 @@ export class PathType extends TypeValidation {
   public async to_type (value: unknown): Promise<unknown> {
     if (typeof value !== 'string')
       throw new Error (`invalid type for ${this.option_type}`);
-    if (!await fs.pathExists (value))
+
+    const escaped = value.replace (/\\$/u, '');
+    if (!await fs.pathExists (escaped))
       throw new Error ('path does not exist');
     if (this.option_type === 'path')
-      return value;
+      return escaped;
 
-    const stat = await fs.stat (value);
+    const stat = await fs.stat (escaped);
     if (stat.isDirectory () === (this.option_type === 'folder'))
-      return value;
+      return escaped;
 
     throw new Error ('cannot assign folder to file');
   }