Nodes: Add cut to context menu and remove shortcut

The node operator 'Cut' was assigned Ctrl+X as a default shortcut. After
some testing this proved to be problematic for the following use case:
- Copy nodes A and B
- Dissolve node C as a preparation for pasting A and B
- Paste
- => The dissolved node C is pasted instead of the expected A and B
  nodes.

This PR removes the shortcut, but keeps the operator accessible by
adding a new 'Cut' entry in the node context menu.

Note: the shortcut is not removed for the industry compatible keymap
because there are no conflicts with the dissolve operator there.

Pull Request: https://projects.blender.org/blender/blender/pulls/154522

scripts/presets/keyconfig/keymap_data/blender_default.py

@@ -2328,7 +2328,6 @@ def km_node_editor(params):
         op_menu_pie("NODE_MT_view_pie", {"type": 'ACCENT_GRAVE', "value": 'PRESS'}),
         ("node.delete", {"type": 'X', "value": 'PRESS'}, None),
         ("node.delete", {"type": 'DEL', "value": 'PRESS'}, None),
-        ("node.delete_copy_reconnect", {"type": 'X', "value": 'PRESS', "ctrl": True}, None),
         ("node.delete_reconnect", {"type": 'DEL', "value": 'PRESS', "ctrl": True}, None),
         *_template_items_select_actions(params, "node.select_all"),
         ("node.select_linked_to", {"type": 'L', "value": 'PRESS', "shift": True}, None),

scripts/startup/bl_ui/space_node.py

@@ -431,6 +431,8 @@ class NODE_MT_node(Menu):
         layout.operator("transform.resize")
 
         layout.separator()
+        layout.operator("node.delete_copy_reconnect", text="Cut")
+        layout.operator_context = 'EXEC_DEFAULT'
         layout.operator("node.clipboard_copy", text="Copy", icon='COPYDOWN')
         layout.operator_context = 'EXEC_DEFAULT'
         layout.operator("node.clipboard_paste", text="Paste", icon='PASTEDOWN')
@@ -723,6 +725,7 @@ class NODE_MT_context_menu(Menu):
 
             layout.separator()
 
+        layout.operator("node.delete_copy_reconnect", text="Cut")
         layout.operator("node.clipboard_copy", text="Copy", icon='COPYDOWN')
         layout.operator("node.clipboard_paste", text="Paste", icon='PASTEDOWN')