As discussed in the task T8076 I am proposing a new annotation toolbar to replace the current one.
The current implementation is very rough, but can be used as a first point to discuss how to proceed in the implementation.
The toolbar uses the current PageViewAnnotator engine based on XML files (with few modifications)
To test this revision
Temporary move the file .config/okularpartrc or the annotation tools may not match the ones in the buttons.
What is working and what is planned