Switch editor::AcceptPartialInlineCompletion keybind to match VSCode (#15495)

Release Notes:

- Fixed editor::AcceptPartialInlineCompletion keybind to match VSCode
([#15487](https://github.com/zed-industries/zed/issues/15487)).

assets/keymaps/default-linux.json

@@ -121,7 +121,7 @@
     "bindings": {
       "alt-]": "editor::NextInlineCompletion",
       "alt-[": "editor::PreviousInlineCompletion",
-      "alt-right": "editor::AcceptPartialInlineCompletion"
+      "ctrl-right": "editor::AcceptPartialInlineCompletion"
     }
   },
   {

assets/keymaps/default-macos.json

@@ -152,7 +152,7 @@
     "bindings": {
       "alt-]": "editor::NextInlineCompletion",
       "alt-[": "editor::PreviousInlineCompletion",
-      "alt-right": "editor::AcceptPartialInlineCompletion"
+      "cmd-right": "editor::AcceptPartialInlineCompletion"
     }
   },
   {