vim: Add multicursor shortcuts

- g n / g N to select next/previous
- g > / g < to select next/previous replacing current
- g a to select all matches

assets/keymaps/vim.json

@@ -125,6 +125,21 @@
       "g shift-t": "pane::ActivatePrevItem",
       "g d": "editor::GoToDefinition",
       "g shift-d": "editor::GoToTypeDefinition",
+      "g n": "vim::SelectNext",
+      "g shift-n": "vim::SelectPrevious",
+      "g >": [
+        "editor::SelectNext",
+        {
+          "replace_newest": true
+        }
+      ],
+      "g <": [
+        "editor::SelectPrevious",
+        {
+          "replace_newest": true
+        }
+      ],
+      "g a": "editor::SelectAllMatches",
       "g s": "outline::Toggle",
       "g shift-s": "project_symbols::Toggle",
       "g .": "editor::ToggleCodeActions", // zed specific