Mass downloading for favicons

[vit9696]

After updating to a new version of KeePassium it is now possible to download favicons. Thank you so much for this. I would personally like to get favicons for websites without them. For this I suggest the following changes:

• [ ] Add context menu entry on the item to download a favicon.
• [ ] Enable mass item selection in the item list.
• [ ] Introduce advanced search for items without favicons.

[keepassium]

Makes sense. I would not want to clutter the context menu for each item, but mass selection + a dedicated menu for selected items should do the trick.