Nvim: add treesj and tmux

tmux integration doesn't work yet

.config/nvim/lua/plugins/join.lua

@@ -0,0 +1,15 @@
+return {
+  'Wansmer/treesj',
+  config = function()
+    require('treesj').setup({
+      use_default_keymaps = false,
+      max_join_length = 1000,
+    })
+    -- -- For default preset
+    -- vim.keymap.set('n', '<leader>jt', require('treesj').toggle)
+    -- -- For extending default preset with `recursive = true`
+    -- vim.keymap.set('n', '<leader>jT', function()
+    --   require('treesj').toggle({ split = { recursive = true } })
+    -- end)
+  end
+}

.config/nvim/lua/plugins/tmux.lua

@@ -0,0 +1,8 @@
+return {
+  'aserowy/tmux.nvim',
+  opts = {
+    navigation = {
+      cycle_navigation = false
+    }
+  }
+}