feat: remove unused jj/kk escape mapping

neovim/default.nix

@@ -27,9 +27,6 @@
         # session handling
         auto-session
 
-        # escape handling
-        better-escape-nvim
-
         nvim-treesitter.withAllGrammars
         nvim-treesitter-textobjects
         nvim-ts-context-commentstring

neovim/keymaps.lua

@@ -64,9 +64,6 @@ nnoremap("gq", ":Bdelete<CR>")
 -- toggle search highlighting
 vim.cmd('nnoremap <expr> * v:hlsearch ? ":nohlsearch<cr>" : "*"')
 
--- insert-map jj/jk to escape
-require("better_escape").setup()
-
 -- open Copilot Chat window
 nnoremap("<leader>cc", ":lua require('CopilotChat').open()<CR>")
 nnoremap("<leader>C", ":CodeCompanionChat #buffer<CR>")