Udata-gouvfr

- Add organization search [593](https://github.com/etalab/udata-gouvfr/pull/593)
- Fix reuses filters issue [592](https://github.com/etalab/udata-gouvfr/pull/592)
- Remove suggest on mobile [590](https://github.com/etalab/udata-gouvfr/pull/590)
- Added homepage "venti" button for the new inventory [591](https://github.com/etalab/udata-gouvfr/pull/591)

- Fix datasets search pagination reset [588](https://github.com/etalab/udata-gouvfr/pull/588)
- Replace link to /search route by /datasets [587](https://github.com/etalab/udata-gouvfr/pull/587)
- Removed useless templates, views and tests after v3 [557](https://github.com/etalab/udata-gouvfr/pull/557)
- Fix datasets search pagination [585](https://github.com/etalab/udata-gouvfr/pull/585)

- :warning: **breaking change**: most of the theme/templates logic has been moved from https://github.com/opendatateam/udata to this repo. `udata` no longer contains a default theme. In the 3.x series, we hope it will be usable as a "headless" open data platform, but for now you probably need to plug your own theme or use udata-gouvfr. [More info about this change here](https://github.com/opendatateam/udata/blob/master/docs/roadmap/udata-3.md#the-road-to-udata3). [492](https://github.com/etalab/udata-gouvfr/pull/492)

- New translations [535](https://github.com/etalab/udata-gouvfr/pull/535)

- Add new translations [518](https://github.com/etalab/udata-gouvfr/pull/518)

- [maaf] fix encoding issue [531](https://github.com/etalab/udata-gouvfr/pull/531)
- Add link to support page [532](https://github.com/etalab/udata-gouvfr/pull/532)
- UX enhancement [525](https://github.com/etalab/udata-gouvfr/pull/525):
- Removed hero's background image.
- Removed home page's carrousel.
- Changed homepage's layout. Datasets are now on top followed by reuses.
- Renamed "Profile" to "Public profile"