cmp: finally fix the annoying tab jump issue

lua/config/keymaps.lua

@@ -6,10 +6,6 @@ require "config.neovide"
 
 vim.keymap.set("t", "<c-d>", "<C-\\><C-n>", { silent = true, desc = "Exit Terminal Mode" })
 
--- LazyVim hardcode tabs to jump snippet completions. Very fucking annoying.
-vim.keymap.del({ "i" }, "<tab>")
-vim.keymap.del({ "i" }, "<s-tab>")
-
 vim.keymap.set(
     "n",
     "<leader>z",

lua/plugins/luasnip.lua

@@ -1,7 +1,42 @@
 return {
+    {
         "L3MON4D3/LuaSnip",
         opts = function(_, opts)
             require "snippets"
             return opts
         end,
+    },
+    {
+        "nvim-cmp",
+        keys = {
+            {
+                "<tab>",
+                false,
+                mode = "i",
+            },
+            {
+                "<c-j>",
+                function()
+                    return require("luasnip").jumpable(1) and "<Plug>luasnip-jump-next" or "<c-j>"
+                end,
+                expr = true,
+                silent = true,
+                mode = { "i", "s" },
+            },
+            {
+                "<c-k>",
+                function()
+                    return require("luasnip").jumpable(-1) and "<Plug>luasnip-jump-prev" or "<c-k>"
+                end,
+                expr = true,
+                silent = true,
+                mode = "i",
+            },
+            {
+                "<s-tab>",
+                false,
+                mode = { "i" },
+            },
+        },
+    },
 }