* refactored CSR into goto() function
* first refectoring for router API
* added test
* added comments to fixture
* rename + preliminary changeset
* changeset: now 'minor' and featuring Mathew's example from the docs
* moved for simpler diff
* update after #8617
* fixed ts-errors
* more comprehensible handling of intra-page state
* sync with main
* synch from next_tm
