Refine JetBrains keymaps (#34658)

Follow-up to: https://github.com/zed-industries/zed/pull/34641

Release Notes:

- N/A

assets/keymaps/linux/jetbrains.json

@@ -72,14 +72,19 @@
       "alt-enter": "editor::ToggleCodeActions"
     }
   },
+  {
+    "context": "BufferSearchBar",
+    "bindings": {
+      "shift-enter": "search::SelectPreviousMatch"
+    }
+  },
   {
     "context": "BufferSearchBar || ProjectSearchBar",
     "bindings": {
-      "shift-enter": "search::SelectPreviousMatch",
-      "ctrl-alt-c": "search::ToggleCaseSensitive",
-      "ctrl-alt-e": "search::ToggleSelection",
-      "ctrl-alt-w": "search::ToggleWholeWord",
-      "ctrl-alt-x": "search::ToggleRegex"
+      "alt-c": "search::ToggleCaseSensitive",
+      "alt-e": "search::ToggleSelection",
+      "alt-x": "search::ToggleRegex",
+      "alt-w": "search::ToggleWholeWord"
     }
   },
   {

assets/keymaps/macos/jetbrains.json

@@ -70,10 +70,15 @@
       "alt-enter": "editor::ToggleCodeActions"
     }
   },
+  {
+    "context": "BufferSearchBar",
+    "bindings": {
+      "shift-enter": "search::SelectPreviousMatch"
+    }
+  },
   {
     "context": "BufferSearchBar || ProjectSearchBar",
     "bindings": {
-      "shift-enter": "search::SelectPreviousMatch",
       "alt-c": "search::ToggleCaseSensitive",
       "alt-e": "search::ToggleSelection",
       "alt-x": "search::ToggleRegex",