[WIP] editor: Implement next/prev reference (#41078)

Co-authored-by: Cole <cole@zed.dev>
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

assets/keymaps/vim.json

@@ -220,6 +220,8 @@
       "[ {": ["vim::UnmatchedBackward", { "char": "{" }],
       "] )": ["vim::UnmatchedForward", { "char": ")" }],
       "[ (": ["vim::UnmatchedBackward", { "char": "(" }],
+      "[ r": "vim::GoToPreviousReference",
+      "] r": "vim::GoToNextReference",
       // tree-sitter related commands
       "[ x": "vim::SelectLargerSyntaxNode",
       "] x": "vim::SelectSmallerSyntaxNode"