implemented copilot integration as ghost text and simplified some

keyboard shortcuts

lua/options.lua

@@ -17,6 +17,7 @@ vim.opt.spellcapcheck = ""
 vim.o.number = true -- Make line numbers default
 vim.o.relativenumber = true
 vim.o.showmode = false
+vim.o.foldmethod = "marker"
 -- Sync clipboard between OS and Neovim.
 --  Schedule the setting after `UiEnter` because it can increase startup-time.
 --  Remove this option if you want your OS clipboard to remain independent.