feat: add collaborative plugin

lua/plugins/collaborative.lua

@@ -0,0 +1,22 @@
+return {
+  {
+    "jbyuki/instant.nvim",
+    lazy = true,
+    cmd = {
+      "InstantStartServer",
+      "InstantStopServer",
+    },
+  },
+  {
+    "mistricky/codesnap.nvim",
+    lazy = true,
+    build = "make",
+    cmd = {
+      "CodeSnap",
+      "CodeSnapSave",
+    },
+    opts = {
+      save_path = "~/Pictures/ScreenShot/",
+    },
+  },
+}