Improve geolocated proposal

As a user, when I go in a geolocated proposal, i first can select where is my proposal and can see all the others answer in the same proposal component.

Only after validating the position, I can go next step in the proposal form.

The rest of the flow stay the same.

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Notion: https://www.notion.so/Improve-geolocated-proposal-3d32b3d69066487285664a72c9b6f6ed

Points: Non défini