Move assets folder out of the Python source tree

.pre-commit-config.yaml

MANIFEST.in

assets/config/.bootstraprc

assets/config/.eslintignore

assets/config/.eslintrc

assets/config/bootstrap-pre-customize.scss

...webpack-plugins/dump-highlightjs-languages-data-plugin.js

...fig/webpack-plugins/fix-swh-source-maps-webpack-plugin.js

...config/webpack-plugins/fix-webpack-stats-format-plugin.js

...bpack-plugins/generate-weblabels-webpack-plugin/README.md

...ebpack-plugins/generate-weblabels-webpack-plugin/index.js

...-plugins/generate-weblabels-webpack-plugin/jslicenses.ejs

...erate-weblabels-webpack-plugin/plugin-options-schema.json

...enerate-weblabels-webpack-plugin/spdx-licenses-mapping.js

assets/config/webpack.config.development.js

assets/config/webpack.config.production.js

assets/src/bundles/admin/deposit.js

assets/src/bundles/admin/index.js

assets/src/bundles/admin/origin-save.js

assets/src/bundles/auth/auth.css