moved custom plugins to seperate folder

lua/custom/plugins/harpoon.lua

@@ -0,0 +1,30 @@
+return {
+    'ThePrimeagen/harpoon',
+    branch = 'harpoon2',
+    dependencies = {
+      'nvim-lua/plenary.nvim',
+    },
+    lazy = false,
+    config = function()
+      require('harpoon'):setup({})
+    end,
+    keys = {
+      {
+        '<leader>a',
+        function()
+          require('harpoon'):list():add()
+        end,
+        mode = 'n',
+        desc = '[A]dd to Harpoon',
+      },
+      {
+        '<C-e>',
+        function()
+          local files = require('harpoon'):list() or {}
+          require('harpoon').ui:toggle_quick_menu(files)
+        end,
+        desc = 'Toggle Harpoon [E]xplorer',
+      },
+    },
+}
+