nvim: Fix markdown rendering in codecompanion buffers

nvim/.config/nvim/lua/plugins/prose.lua

@@ -70,6 +70,7 @@ local prose_plugs = {
 		"MeanderingProgrammer/render-markdown.nvim",
 		main = "render-markdown",
 		opts = {
+			file_types = { "markdown", "codecompanion" },
 			render_modes = { "n", "c", "i" },
 			code = {
 				sign = false,