Adding lazygit as custom puglin

Also, adding a typo fix

lua/custom/plugins/lazygit.lua

@@ -0,0 +1,21 @@
+return {
+  {
+    'kdheepak/lazygit.nvim',
+    cmd = {
+      'LazyGit',
+      'LazyGitConfig',
+      'LazyGitCurrentFile',
+      'LazyGitFilter',
+      'LazyGitFilterCurrentFile',
+    },
+    -- optional for floating window border decoration
+    dependencies = {
+      'nvim-lua/plenary.nvim',
+    },
+    -- setting the keybinding for LazyGit with 'keys' is recommended in
+    -- order to load the plugin when the command is run for the first time
+    keys = {
+      { '<leader>lg', '<cmd>LazyGit<cr>', desc = 'LazyGit' },
+    },
+  },
+}