feat: add hardtime.nvim

lua/plugins/hardtime.lua

@@ -0,0 +1,14 @@
+return {
+   "m4xshen/hardtime.nvim",
+   dependencies = { "MunifTanjim/nui.nvim", "nvim-lua/plenary.nvim" },
+   opts = {
+        disable_mouse = true,
+        disabled_keys = {
+            -- Drill Sergeant Demchuk!
+            ["<Up>"] = {"", "i"},
+            ["<Down>"] = {"", "i"},
+            ["<Left>"] = {"", "i"},
+            ["<Right>"] = {"", "i"}
+        }
+    }
+}