Accept multiple bookmarks from Firefox on Android

### Which version of floccus are you using?

5.8.3

### How many bookmarks do you have, roughly?

10

### Are you using other means to sync bookmarks in parallel to floccus?

Not applicable

### Sync method

Nextcloud Bookmarks

### Which browser are you using? In case you are using the phone App, specify the Android or iOS version and device please.

Firefox 147.0.2 on Android (Oukital C51)

### Which version of Nextcloud Bookmarks are you using? (if relevant)

irrelevant

### Which version of Nextcloud? (if relevant)

irrelevant

### What kind of WebDAV server are you using? (if relevant)

irrelevant

### Describe the Bug

When you are on FF on Android an have multiple tabs open, you can select multiple of them and send them ("share") to floccus. With single tabs, this works. When multiple tabs are sent, all URLs are plainly combined into a single string. no spaces or whatever is kept in between, so it is like http://example1.com/http://example2.comhttp://example3.com/foo/index.htmlhttp://example4.com.

This is not about the actual sync but the interface towards Firefox and the detection of the URL/name.

### Expected Behavior

You can select a folder where all previously selected tabs are bookmarked individually.

### To Reproduce

1. Open Firefox
2. Open multiple tabs with pages
3. Open the tab overview
4. Long press one tab to select it
5. Press the other tabs
6. Click on share icon in top row
7. Select floccus and see the issue

### Debug log provided

- [ ] I have provided a debug log file