Needed as result of D10875: Spreadsheet: Show data of node.

Issue:

• When selecting a node for data inspection it is not immediately clear that you have to switch the spreadsheet context to Node
• Having no node selected for inspection has no implied functionality when Node is selected as

Initial Proposal/Ideas:

• Make the toggle on a node to set it as inspected an actual toggle that can be turned off so that no node can be set to be inspected
• Rename Final context to Evaluated OR add additional Evaluated context
• Remove Node context and let the inspected node context override the Evaluated context when a node is set to be inspected
• When no node is set to be inspected the Evaluated context displays the same as Final

(Instead of Evaluated it could also be a new Modifier context, that defaults to the output geometry of the active modifier if no node is selected)

Comments:

• The preview of geometry in the 3D viewport has to also be considered to work with this design