new design for left click and wheel (#5566)

* new design for left click and wheel

* update snap

* fix import

* fix test

* default value

* fix test

* Update test expectations [skip ci]

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Co-authored-by: github-actions <github-actions@github.com>

tests-ui/tests/litegraph/core/__snapshots__/litegraph.test.ts.snap

@@ -155,9 +155,11 @@ LiteGraphGlobal {
   "do_add_triggers_slots": false,
   "highlight_selected_group": true,
   "isInsideRectangle": [Function],
+  "leftMouseClickBehavior": "panning",
   "macGesturesRequireMac": true,
   "macTrackpadGestures": false,
   "middle_click_slot_add_default_node": false,
+  "mouseWheelScroll": "panning",
   "node_box_coloured_by_mode": false,
   "node_box_coloured_when_on": false,
   "node_images_path": "",