v0.8.1

INTRO

This is a bugfix release for v0.8.0. It contains several minor bugfixes reported after the last release.
for more details, check out our milestone.

What's Changed

• build(deps): bump golang.org/x/image from 0.17.0 to 0.18.0 by @dependabot in #806
• add Context.Backend() method that returns currently used cimgui-go ba… by @gucio321 in #811
• master window: fix DPI scaling by @gucio321 in #812
• GetWidgetWidth: undo SameLine call by calling NewLine by @gucio321 in #813

Full Changelog: v0.8.0...v0.8.1