Label-sleuth

**Features**
* Add a selector that will not verify we have both positive and negatives

What's Changed
* fix: wrong message shown when model is being trained by martinscooper in https://github.com/label-sleuth/label-sleuth/pull/559


**Full Changelog**: https://github.com/label-sleuth/label-sleuth/compare/v0.13.6...v0.13.7

**Multiple UI fixes by** martinscooper
- fix test_app exception in wait_for_new_iteration().
- fix workspace page gets reloaded when submitting.
- remove placeholders on the login page.

What's Changed
* fix: bring ui defaults file back back and correct app logo path by martinscooper in https://github.com/label-sleuth/label-sleuth/pull/557


**Full Changelog**: https://github.com/label-sleuth/label-sleuth/compare/v0.13.4...v0.13.5

**Fixes**

- Add the assets directory to MANIFEST.in, to fix the missing logo on PyPi.

**Fixes**
- Add the assets directory to setup.py to fix the missing logo on PyPi.