Conversion on copy paste:
Introduce tests for conversion on copy paste
Don't insert additional end of line after each converted element (not needed since converter takes care of formatting)
Add test for some of the trivial cases of conversion on copy paste
Refactor converter:
Convert JavaCopyPasteProcessor to kotlin (minor code prettifications)
Conversion on copy paste:
Only convert elements that are wholly selected
Conversion on copy paste:
Copy element as text in case it can't be converted
Conversion on copy paste:
Copy elements that are partially selected as text
Conversion on copy paste:
Refactor: prettify code
Conversion on copy paste dialog:
Change text for dialog options to "Yes/No"