vimPlugins.coc-spell-checker: use a node package

- coc-spell-checker needs to be from nodePackages rather than generated
  as normal vim plugins are
- this commit adds coc-spell-checker to nodePackages and adds an
  override to the vim plugin

pkgs/applications/editors/vim/plugins/overrides.nix

@@ -1306,6 +1306,7 @@ self: super: {
       "coc-smartf"
       "coc-snippets"
       "coc-solargraph"
+      "coc-spell-checker"
       "coc-sqlfluff"
       "coc-stylelint"
       "coc-sumneko-lua"

pkgs/applications/editors/vim/plugins/vim-plugin-names

@@ -141,7 +141,6 @@ https://github.com/neoclide/coc-denite/,,
 https://github.com/antoinemadec/coc-fzf/,,
 https://github.com/josa42/coc-lua/,,
 https://github.com/neoclide/coc-neco/,,
-https://github.com/iamcco/coc-spell-checker/,,
 https://github.com/coc-extensions/coc-svelte/,,
 https://github.com/iamcco/coc-tailwindcss/,,
 https://github.com/neoclide/coc.nvim/,release,

pkgs/development/node-packages/node-packages.json

@@ -85,6 +85,7 @@
 , "coc-smartf"
 , "coc-snippets"
 , "coc-solargraph"
+, "coc-spell-checker"
 , "coc-stylelint"
 , "coc-sumneko-lua"
 , "coc-sqlfluff"