tmux and enable base plugins

lua/custom/plugins/init.lua

@@ -2,4 +2,22 @@
 --  I promise not to create any merge conflicts in this directory :)
 --
 -- See the kickstart.nvim README for more information
-return {}
+return {
+  {
+    'christoomey/vim-tmux-navigator',
+    cmd = {
+      'TmuxNavigateLeft',
+      'TmuxNavigateDown',
+      'TmuxNavigateUp',
+      'TmuxNavigateRight',
+      'TmuxNavigatePrevious',
+    },
+    keys = {
+      { '<c-h>', '<cmd><C-U>TmuxNavigateLeft<cr>' },
+      { '<c-j>', '<cmd><C-U>TmuxNavigateDown<cr>' },
+      { '<c-k>', '<cmd><C-U>TmuxNavigateUp<cr>' },
+      { '<c-l>', '<cmd><C-U>TmuxNavigateRight<cr>' },
+      { '<c-\\>', '<cmd><C-U>TmuxNavigatePrevious<cr>' },
+    },
+  },
+}