[Neotab] Add, update CMP mapping to be compatible

nvim/lua/plugins/lsp/cmp.lua

@@ -56,12 +56,10 @@ return {
                 ["<Tab>"] = cmp.mapping(function(fallback)
                     if cmp.visible() then
                         cmp.confirm({ behavior = cmp.ConfirmBehavior.Insert, select = true })
-                    elseif require("luasnip").expandable() then
-                        -- Expands snippet if possible
-                        require("luasnip").expand()
                     else
                         -- Otherwise, fallback (insert a tab character)
-                        fallback()
+                        require("neotab").tabout()
+                        -- fallback()
                     end
                 end, { "i", "s" }),
 

nvim/lua/plugins/util/neotab.lua

@@ -0,0 +1,7 @@
+return {
+    "kawre/neotab.nvim",
+    event = "InsertEnter",
+    opts = {
+        tabkey = "",
+    },
+}