chore(web): fix serviceWorkerVersion deprecation and migrate to new bootstrap API

update: example

update: example

version: bump version to 1.26.3

style(ObserverController): add missing type annotations

fix(ObserverWidget): correct tag comparison logic and enhance testability (#143)

update(.github): FUNDING.yml

docs: README

update: example

update: example

chore: pub upgrade

version: bump version to 1.26.2

update: example

fix(ObserverUtils): refine the logic of calcAnchorTabIndex method

update: example