vim: Add neovim 0.11 default mappings (#28602)

Update the keymap to include:
https://neovim.io/doc/user/news-0.11.html#_defaults

This does conflict with `gr` replace with register though, is `gR` a
good alternative?

Release Notes:

- vim: Update the keymap to include: https://neovim.io/doc/user/news-0.11.html#_defaults
- vim: Replace with register has been remapped from `gr` to `gR`.

assets/keymaps/vim.json

@@ -50,6 +50,12 @@
       "] -": "vim::NextLesserIndent",
       "] +": "vim::NextGreaterIndent",
       "] =": "vim::NextSameIndent",
+      "] b": "pane::ActivateNextItem",
+      "[ b": "pane::ActivatePreviousItem",
+      "] shift-b": "pane::ActivateLastItem",
+      "[ shift-b": ["pane::ActivateItem", 0],
+      "] space": "vim::InsertEmptyLineBelow",
+      "[ space": "vim::InsertEmptyLineAbove",
       // Word motions
       "w": "vim::NextWordStart",
       "e": "vim::NextWordEnd",
@@ -108,7 +114,11 @@
       "ctrl-e": "vim::LineDown",
       "ctrl-y": "vim::LineUp",
       // "g" commands
-      "g r": "vim::PushReplaceWithRegister",
+      "g shift-r": "vim::PushReplaceWithRegister",
+      "g r n": "editor::Rename",
+      "g r r": "editor::FindAllReferences",
+      "g r i": "editor::GoToImplementation",
+      "g r a": "editor::ToggleCodeActions",
       "g g": "vim::StartOfDocument",
       "g h": "editor::Hover",
       "g t": "pane::ActivateNextItem",
@@ -127,6 +137,7 @@
       "g <": ["editor::SelectPrevious", { "replace_newest": true }],
       "g a": "editor::SelectAllMatches",
       "g s": "outline::Toggle",
+      "g shift-o": "outline::Toggle",
       "g shift-s": "project_symbols::Toggle",
       "g .": "editor::ToggleCodeActions", // zed specific
       "g shift-a": "editor::FindAllReferences", // zed specific
@@ -305,7 +316,7 @@
       "!": "vim::ShellCommand",
       "i": ["vim::PushObject", { "around": false }],
       "a": ["vim::PushObject", { "around": true }],
-      "g r": ["vim::Paste", { "preserve_clipboard": true }],
+      "g shift-r": ["vim::Paste", { "preserve_clipboard": true }],
       "g c": "vim::ToggleComments",
       "g q": "vim::Rewrap",
       "g ?": "vim::ConvertToRot13",
@@ -339,7 +350,8 @@
       "ctrl-shift-q": ["vim::PushLiteral", {}],
       "ctrl-r": "vim::PushRegister",
       "insert": "vim::ToggleReplace",
-      "ctrl-o": "vim::TemporaryNormal"
+      "ctrl-o": "vim::TemporaryNormal",
+      "ctrl-s": "editor::ShowSignatureHelp"
     }
   },
   {
@@ -630,9 +642,10 @@
     }
   },
   {
-    "context": "vim_operator == gr",
+    "context": "vim_operator == gR",
     "bindings": {
-      "r": "vim::CurrentLine"
+      "r": "vim::CurrentLine",
+      "shift-r": "vim::CurrentLine"
     }
   },
   {