These are frontend changes.
Use Vue for the import feature UI for "githubish"
providers (GitHub and Gitea).
Add "Go to project" button after a successful import.
Use CI-style status icons and improve spacing of the
table and its component.
Adds ETag polling to the github and gitea import
jobs endpoint.
It allows user to automatically import multiple repositories
with nested structure by uploading a manifest xml file.
AOSP project was used as an example during development of this feature.
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>