feat(tmux): install tmux plugin manager

Also update tmux config to reflect this change, and mount a plugin dir.

Dockerfile

@@ -140,7 +140,7 @@ COPY ./patch/kickstart.nvim/updates.patch /tmp
 COPY ./config/nvim/lua/custom/plugins/init.lua /tmp
 RUN git clone https://github.com/nvim-lua/kickstart.nvim.git "${XDG_CONFIG_HOME}"/nvim \
   && cd ${XDG_CONFIG_HOME}/nvim \
-  && git reset --hard 313bd75ca04cb2cef48a79ac3ad697a1b9a2daab \
+  && git reset --hard 9b256d93688b3d295dab89f06faeff741af58a68 \
   && git apply /tmp/updates.patch \
   && cp /tmp/init.lua ${XDG_CONFIG_HOME}/nvim/lua/custom/plugins \
   && nvim --headless "+Lazy! sync" +qa

patch/kickstart.nvim/updates.patch

@@ -1,8 +1,8 @@
 diff --git a/init.lua b/init.lua
-index 5257113..85e97a5 100644
+index a7667dd..6bf8654 100644
 --- a/init.lua
 +++ b/init.lua
-@@ -219,7 +219,7 @@ require('lazy').setup({
+@@ -227,7 +227,7 @@ require('lazy').setup({
    --    Uncomment the following line and add your plugins to `lua/custom/plugins/*.lua` to get going.
    --
    --    For additional information see: https://github.com/folke/lazy.nvim#-structuring-your-plugins
@@ -11,7 +11,7 @@ index 5257113..85e97a5 100644
  }, {})
  
  -- [[ Setting options ]]
-@@ -229,11 +229,12 @@ require('lazy').setup({
+@@ -237,11 +237,12 @@ require('lazy').setup({
  -- Set highlight on search
  vim.o.hlsearch = false
  
@@ -27,7 +27,7 @@ index 5257113..85e97a5 100644
  
  -- Sync clipboard between OS and Neovim.
  --  Remove this option if you want your OS clipboard to remain independent.
-@@ -263,6 +264,14 @@ vim.o.completeopt = 'menuone,noselect'
+@@ -271,6 +272,14 @@ vim.o.completeopt = 'menuone,noselect'
  -- NOTE: You should make sure your terminal supports this
  vim.o.termguicolors = true
  
@@ -42,40 +42,40 @@ index 5257113..85e97a5 100644
  -- [[ Basic Keymaps ]]
  
  -- Keymaps for better default experience
-@@ -323,11 +332,29 @@ vim.keymap.set('n', '<leader>sr', require('telescope.builtin').resume, { desc =
- -- See `:help nvim-treesitter`
- require('nvim-treesitter.configs').setup {
-   -- Add languages to be installed here that you want installed for treesitter
--  ensure_installed = { 'c', 'cpp', 'go', 'lua', 'python', 'rust', 'tsx', 'javascript', 'typescript', 'vimdoc', 'vim' },
+@@ -333,11 +342,29 @@ vim.keymap.set('n', '<leader>sr', require('telescope.builtin').resume, { desc =
+ vim.defer_fn(function()
+   require('nvim-treesitter.configs').setup {
+     -- Add languages to be installed here that you want installed for treesitter
+-    ensure_installed = { 'c', 'cpp', 'go', 'lua', 'python', 'rust', 'tsx', 'javascript', 'typescript', 'vimdoc', 'vim', 'bash' },
 -
-+  ensure_installed = {
-+    'css',
-+    'dockerfile',
-+    'eex',
-+    'elixir',
-+    'erlang',
-+    'go',
-+    'heex',
-+    'html',
-+    'http',
-+    'javascript',
-+    'json',
-+    'lua',
-+    'markdown',
-+    'python',
-+    'sql',
-+    'tsx',
-+    'typescript',
-+    'vim',
-+    'vimdoc'
-+  },
-   -- Autoinstall languages that are not installed. Defaults to false (but you can change for yourself!)
-   auto_install = false,
++    ensure_installed = {
++      'css',
++      'dockerfile',
++      'eex',
++      'elixir',
++      'erlang',
++      'go',
++      'heex',
++      'html',
++      'http',
++      'javascript',
++      'json',
++      'lua',
++      'markdown',
++      'python',
++      'sql',
++      'tsx',
++      'typescript',
++      'vim',
++      'vimdoc'
++    },
+     -- Autoinstall languages that are not installed. Defaults to false (but you can change for yourself!)
+     auto_install = false,
 -
-   highlight = { enable = true },
-   indent = { enable = true },
-   incremental_selection = {
-@@ -456,19 +483,24 @@ require('which-key').register({
+     highlight = { enable = true },
+     indent = { enable = true },
+     incremental_selection = {
+@@ -472,19 +499,24 @@ require('mason-lspconfig').setup()
  --  If you want to override the default filetypes that your language server will attach to you can
  --  define the property 'filetypes' to the map in question.
  local servers = {