Improve creation of word from snippet items

problem

When the lsp item has snippet textEdit, the source inserts CompletionItem.label, which is sometimes invalid to insert.

solution

Create word from insertText or textEdit.newText. This is the same way as vim-lsp or nvim-cmp. Of course, I took the past problems of creating word like #25 into consideration.

screenshot

before ddc-nvim-lsp_pr2

@snippet-expantion ddc-nvim-lsp_pr2_fixed

Shougo / ddc-source-lsp

Improve creation of word from snippet items #34

problem

solution

screenshot