Blender Git Loki

Fix T83307: Some modal keys of transform operators don't correspond to the expected effect

The transform modes `shrinkfatten` and `seq_slide` have a special way of
handling events.

They use modal events in a different way than expected.

Therefore, this commit adds special event handles for these modes and
removes the keymodal tips from the status bar.

These effects are already described in the header anyway.