persistServerBasePath behaves differently on iOS / Android

I'm using this plugin in conjunction with a hot code update so I download the code to a path on local storage, and then set the server base path to this new location. That part is working great, but I was having an issue with the app loading to the old version for a bit before the path gets set so I thought I'd fix that using `persistServerBasePath`. However, it seems to be broken for iOS (or I'm misunderstanding something).

**iOS**

Stores the result of `[self.basePath lastPathComponent]` which as just stores the last segment of the path.

For example, `/the/path/to/my/files` becomes `files`

https://github.com/ionic-team/cordova-plugin-ionic-webview/blob/3d1bcddc79f5f81d4e4610c550a687b7a4a867f5/src/ios/CDVWKWebViewEngine.m#L766

Additionally, `lastPathComponent` is called on the path AGAIN after it is recovered from storage here

https://github.com/ionic-team/cordova-plugin-ionic-webview/blob/3d1bcddc79f5f81d4e4610c550a687b7a4a867f5/src/ios/CDVWKWebViewEngine.m#L147

**Android**

Seems to store the path as it was set with no modification which is working great for my purposes

https://github.com/ionic-team/cordova-plugin-ionic-webview/blob/56f2032e488206b0097b827de6a71b39d11e05db/src/android/com/ionicframework/cordova/webview/IonicWebView.java#L33

**Useful log data from iOS**

What I called `persistServerBasePath` with:

```
/var/mobile/Containers/Data/Application/8C0C07CC-0FD3-4FD4-B7DF-90A88E123/Library/Application Support/com.myappname.redacted/cordova-hot-code-push-plugin/2019.01.29-21.34.53/www
```

What was persisted:

```
www
```

After I removed `lastPathComponent` from the persist code this is what was persisted / loaded in `getStartPath`:

```
/var/mobile/Containers/Data/Application/8C0C07CC-0FD3-4FD4-B7DF-90A88E123/Library/Application Support/com.myappname.redacted/cordova-hot-code-push-plugin/2019.01.29-21.34.53/www
```

Which is run through `[snapshots stringByAppendingPathComponent:[persistedPath lastPathComponent]]` resulting in this:

```
/var/mobile/Containers/Data/Application/8C0C07BE-0FD3-4FD4-B7DF-90A88E12B8C3/Library/NoCloud/ionic_built_snapshots/www
```

**Solution**

I'm not sure if this is intentional for some reason I don't understand, but for my use case it is causing problems. My only guess is this is meant for moving to a sub folder, but I need to go to an entirely different path. Also, android seems to allow this without issue, but iOS doesn't so at the very least this should have consistent behavior.