vim: Add g? convert to Rot13/Rot47 (#27824)

Release Notes:

- Added `g?` convert to `Rot13`/`Rot47`

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

assets/keymaps/vim.json

@@ -227,6 +227,8 @@
       "g u": "vim::PushLowercase",
       "g shift-u": "vim::PushUppercase",
       "g ~": "vim::PushOppositeCase",
+      "g ?": "vim::PushRot13",
+      // "g ?": "vim::PushRot47",
       "\"": "vim::PushRegister",
       "g w": "vim::PushRewrap",
       "g q": "vim::PushRewrap",
@@ -298,6 +300,8 @@
       "g r": ["vim::Paste", { "preserve_clipboard": true }],
       "g c": "vim::ToggleComments",
       "g q": "vim::Rewrap",
+      "g ?": "vim::ConvertToRot13",
+      // "g ?": "vim::ConvertToRot47",
       "\"": "vim::PushRegister",
       // tree-sitter related commands
       "[ x": "editor::SelectLargerSyntaxNode",
@@ -477,6 +481,13 @@
       "~": "vim::CurrentLine"
     }
   },
+  {
+    "context": "vim_operator == g?",
+    "bindings": {
+      "g ?": "vim::CurrentLine",
+      "?": "vim::CurrentLine"
+    }
+  },
   {
     "context": "vim_operator == gq",
     "bindings": {