fix(#914): remove existence check before create-file, rename-file, harden clobbered buffer renaming#1977

alex-courtis wants to merge 2 commits intomasternvim-tree/nvim-tree.lua:masterfrom

914-remove-rename-file-checknvim-tree/nvim-tree.lua:914-remove-rename-file-checkCopy head branch name to clipboard