added esc support on nvim terminal, fix debugger crash and alpha problem

lua/config/keymaps.lua

@@ -5,6 +5,9 @@ vim.keymap.set({"n", "v"}, "<C-j>", "18j", {desc = "Fast scroll down"})
 vim.keymap.set({"n", "v"}, "<C-k>", "18k", {desc = "Fast scroll up"})
 vim.keymap.set("n", "<Leader>h", "<cmd>:noh<CR>", {desc = "Remove current highlighting"})
 
+-- Exit terminal mode easily with Escape
+vim.keymap.set('t', '<Esc>', [[<C-\><C-n>]], { desc = 'Exit terminal mode' })
+
 vim.keymap.set("v", "<Leader>y", '"+y', {desc='Yank to "+ register for external copy/paste'})
 
 --CODE/LSP