Activity page and material asset creation

This update introduces an activity page for notifications and allows creating material assets when multiple objects are selected.

Changes

• New: Activity page! Now you can get notifications of the files shared!
• New: Allow creating material assets when multiple objects are selected.
• New: You can now send feedback easily from the app (Feedback & Support menu).
• New: Transform controls now enable you to rotate in parallel to camera.
• New: Transform controls now enable you to rotate axis oriented when looking from the front.
• Fixed asset panel staying visible on dashboard in electron.
• Fixed non-visible vector tools helper lines on light background.
• Fixed reassign materials on objects when deleting a material asset.
• Fixed resolution bug when exporting scene with post-processing.
• Minor improvements and optimizations on the modelling tools.
• Minor UX improvements in editor sidebar.
• Minor bug fixes.