replace vim-expand-region with built-in nvim-treesitter functionality

as a bonus, this seems to work somewhat better being LSP-based

nvim/lazy-lock.json

@@ -46,7 +46,6 @@
   "toggleterm.nvim": { "branch": "main", "commit": "137d06fb103952a0fb567882bb8527e2f92d327d" },
   "tokyonight.nvim": { "branch": "main", "commit": "817bb6ffff1b9ce72cdd45d9fcfa8c9cd1ad3839" },
   "trouble.nvim": { "branch": "main", "commit": "6efc446226679fda0547c0fd6a7892fd5f5b15d8" },
-  "vim-expand-region": { "branch": "master", "commit": "966513543de0ddc2d673b5528a056269e7917276" },
   "vim-sleuth": { "branch": "master", "commit": "cd9d382e33bb817abe7f10cdc3a606bf1d491d75" },
   "which-key.nvim": { "branch": "main", "commit": "bfec3d6bc0a9b0b2cb11644642f78c2c3915eef0" }
 }

nvim/lua/plugins/nvim-treesitter.lua

@@ -47,6 +47,13 @@ return {
         additional_vim_regex_highlighting = { 'ruby' },
       },
       indent = { enable = true, disable = { 'ruby' } },
+      incremental_selection = {
+        enable = true,
+        keymaps = {
+          node_incremental = '<C-A-Up>',
+          node_decremental = '<C-A-Down>',
+        },
+      },
     },
     -- There are additional nvim-treesitter modules that you can use to interact
     -- with nvim-treesitter. You should go explore a few and see what interests you:

nvim/lua/plugins/vim-expand-region.lua

@@ -1,29 +0,0 @@
-return {
-  {
-    'terryma/vim-expand-region',
-    keys = {
-      { 'v', mode = { 'x' }, '<Plug>(expand_region_expand)', desc = 'expand_region_expand' },
-      { 'V', mode = { 'x' }, '<Plug>(expand_region_shrink)', desc = 'expand_region_shrink' },
-    },
-    init = function()
-      vim.cmd [[
-            let g:expand_region_text_objects = {
-                    \ 'iw'  :0,
-                    \ 'iW'  :0,
-                    \ 'i"'  :0,
-                    \ 'i''' :0,
-                    \ 'i]'  :1,
-                    \ 'ib'  :1,
-                    \ 'iB'  :1,
-                    \ 'il'  :1,
-                    \ 'ii'  :1,
-                    \ 'ip'  :0,
-                    \ 'ie'  :0,
-                    \ 'a]'  :1,
-                    \ 'ab'  :1,
-                    \ 'aB'  :1,
-                    \ }
-            ]]
-    end,
-  },
-}