UX bugs

[kategerasimenko]

• double request (for the target table and table 0) when opening a table from favourites / notes

• open the list of favourites / notes
• click on any item
• the target table is loaded first for half a second and then reloaded with table 0
• request tracking shows that there are two requests when clicking on the table link

• "remove from favourites" button throws 500

• add item to favourites
• open favourites
• delete the item
• action fails

• "remove note" acts weirdly

• Create two notes
• Try to remove one of them
• It is not removed
  And in general, it acts weirdly, try to experiment and you will see

• xlsx table for annotation is not available for export (I thought Ondrej integrated it, was it removed on purpose?)
• favourites are apparently saved somewhere when the user closes the tab with the application (the "favourite" button is pressed when I reopen the tab) but the "favourites" list is empty
• the icons for interactive mode and export are displayed as missing characters in some OS / browsers / fonts, it will be better to replace them with PNG images (the icons may stay the same)