Change kep mappings in lua

nvim/lua/current-theme.lua

@@ -1 +1 @@
-vim.cmd("colorscheme catppuccin")
+vim.cmd("colorscheme kanagawa-wave")

nvim/lua/sam/options.lua

@@ -5,3 +5,47 @@ vim.g.maplocalleader = " " -- Set the local leader key to the space bar.
 -- sam.options.lua
 vim.opt.number = true          -- Absolute numbers on all lines
 vim.opt.relativenumber = true  -- Relative numbers (hybrid when both enabled)
+
+-- ===================================================================
+--  Essential Keybindings
+-- ===================================================================
+
+-- Set a timeout for which-key to respond (in milliseconds)
+vim.opt.timeoutlen = 300
+
+-- A helper function to make setting keymaps easier
+local keymap = function(mode, lhs, rhs, opts)
+  local options = { noremap = true, silent = true }
+  if opts then
+    options = vim.tbl_extend("force", options, opts)
+  end
+  vim.api.nvim_set_keymap(mode, lhs, rhs, options)
+end
+
+-- --- General ---
+-- Save the current file
+keymap("n", "<leader>w", ":w<CR>", { desc = "Write (Save) File" })
+
+-- Quit the current buffer/window
+keymap("n", "<leader>q", ":q<CR>", { desc = "Quit Window" })
+
+-- --- Window Management (Splits) ---
+-- Split window vertically
+keymap("n", "<leader>sv", "<C-w>v", { desc = "Split Vertically" })
+
+-- Split window horizontally
+keymap("n", "<leader>sh", "<C-w>s", { desc = "Split Horizontally" })
+
+-- --- Navigation Between Splits ---
+-- Move to the window below/above/left/right
+keymap("n", "<C-j>", "<C-w>j", { desc = "Move to Window Below" })
+keymap("n", "<C-k>", "<C-w>k", { desc = "Move to Window Above" })
+keymap("n", "<C-h>", "<C-w>h", { desc = "Move to Window Left" })
+keymap("n", "<C-l>", "<C-w>l", { desc = "Move to Window Right" })
+
+-- --- Buffer Navigation ---
+-- Go to the next buffer
+keymap("n", "<S-l>", ":bnext<CR>", { desc = "Next Buffer" })
+
+-- Go to the previous buffer
+keymap("n", "<S-h>", ":bprevious<CR>", { desc = "Previous Buffer" })