Moving to individual plugin files for lazy

Signed-off-by: Taken <taken@mairimashita.org>

lua/taken/plugins/lsp/null-ls.lua

@@ -1,14 +1,16 @@
-local setup, null_ls = pcall(require, "null-ls")
-if not setup then
-    return
-end
+return {
+    "jose-elias-alvarez/null-ls.nvim",
+    config = function()
+        local null_ls = require("null-ls")
 
-local formatting = null_ls.builtins.formatting
-local diagnostics = null_ls.builtins.diagnostics
+        local formatting = null_ls.builtins.formatting
+        local diagnostics = null_ls.builtins.diagnostics
 
-null_ls.setup({
-    sources = {
-        formatting.stylua,
-        formatting.clang_format,
-    },
-})
+        null_ls.setup({
+            sources = {
+                formatting.stylua,
+                formatting.clang_format,
+            },
+        })
+    end,
+}