Htagui

fix trouble import from "htag.ui"

lot of changes:

- relayout repo and new import mechanism
- each ui layout (tags & dialog) use its own objects (shoelace with animation!)
- new "i-fields" objects (IText, IRange ...), and work for the 3 toolkits
- some minor changes in dialog api
- unitests can work for the 3 toolkits (but need a lot of tests)

**Full Changelog**: https://github.com/manatlan/htagui/compare/v0.3.3...v0.4.0

shoelace & bulma use their own tab system

all dialogs & form, can use a callback async/sync/generator/normal ;-)

add dialog.clipboard_copy(txt:str)

a lot of fixes ;-)

**Full Changelog**: https://github.com/manatlan/htagui/compare/v0.2.0...v0.3.0