feat(lazy.lua): add lazy loading functionality for lazy.nvim plugin to improve startup time and performance

lua/absolute/lazy.lua

@@ -0,0 +1,33 @@
+local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
+if not (vim.uv or vim.loop).fs_stat(lazypath) then
+    local lazyrepo = "https://github.com/folke/lazy.nvim.git"
+    local out = vim.fn.system({ "git", "clone", "--filter=blob:none", "--branch=stable", lazyrepo, lazypath })
+    if vim.v.shell_error ~= 0 then
+        vim.api.nvim_echo({
+            { "Failed to clone lazy.nvim:\n", "ErrorMsg" },
+            { out,                            "WarningMsg" },
+            { "\nPress any key to exit..." },
+        }, true, {})
+        vim.fn.getchar()
+        os.exit(1)
+    end
+end
+
+vim.opt.rtp:prepend(lazypath)
+
+require("lazy")
+    .setup({
+            { import = "absolute.plugins" },
+        },
+        {
+            checker = {
+                enabled = true,
+                notify = false,
+            },
+            change_detection = {
+                notify = false,
+            },
+        })
+
+require("absolute.core.colorscheme")
+require("../current-theme");