Adding UI

[niposch]

This plugin is awesome.
I need to add pdf pages quickly and need some graphical way to do this.
Writing the json into the code block is just way too slow.
Having some sort of pop up that can be activated via a shortcut or via ctrl + p can speed up the process of inserting a page into the current document.
The pop-up should function similar to the pop-up used in the obsidian tasks plugin. => https://github.com/schemar/obsidian-tasks
It should allow new insertions to be made, and it should allow existing insertions to be modified.