[Feat][UX] Coordinates validation and tip to get them for place

[nramc]

Get the coordinates of a place

1. On your computer, open Google Maps.
2. Right-click the place or area on the map.
3. This will open a pop-up window. You can find your latitude and longitude in decimal format at the top.
4. To copy the coordinates automatically, left click on the latitude and longitude.

Tips:

1. List your latitude coordinates before longitude coordinates.
2. Check that the first number in your latitude coordinate is between -90 and 90.
3. Check that the first number in your longitude coordinate is between -180 and 180.

[nramc]

moved nramc/journeys#102