added plugin for cobalt2 colourscheme

lua/plugins/cobalt2.lua

@@ -0,0 +1,12 @@
+return {
+    "lalitmee/cobalt2.nvim",
+    event = { "ColorSchemePre" }, -- if you want to lazy load
+    dependencies = { "tjdevries/colorbuddy.nvim", tag = "v1.0.0" },
+    init = function()
+        require("colorbuddy").colorscheme("cobalt2")
+    end,
+    "LazyVim/LazyVim",
+    opts = {
+        colorscheme = "cobalt2",
+    },
+}