fix: upload could only upload to non-existant folder

Author: jakobrosenberg

src/Device.js

@@ -491,8 +491,9 @@ class Device {
    * }} options
    */
   async upload(source, destination, options) {
-    destination = posix.join(this.config.rootPath, `/${destination}`.replace(/\/+/g, "/"));
-    await this.adapter.mkdirs(destination.replace(/\/.+?$/, ""));
+    destination = posix.join(this.config.rootPath, destination.replace(/[\/\\]+/g, "/"));
+    await this.adapter.mkdirs(dirname(destination));
+
     const root = source;
     const ignores = [...this.pymakr.config.get().get("ignore")];
     const pymakrConfig = getNearestPymakrConfig(source);