Repro steps:
1. Create a VFX Shader Graph
2. Assign it to a VFX output
3. In SG, add an exposed Vector1 and save the graph
4. Observe how it automatically updates in the VFX Graph
5. Change the 'Mode' of the exposed Vector1 to 'Slider' and save the SG.
6. Observe how the slider does not appear in the VFX Graph

Expected outcome:
- When the Shader Graph shader is saved, the exposed property to switch to a slider in the VFX Graph

Notes:
- minor UX issue, reassigning the SG in the VFX output refreshes the output to correctly show a slider