There shouldn't be a default picked location!!

**Is your feature request related to a problem? Please describe.**
Right now when we open the location picker it already pinned the default lat, long.

**Describe the solution you'd like**
There are three scenarios:

1. **Location service is on and we have the user's location:** The pin should be on the user's location by default.
2. **Location service is on but we don't have the user's location:** In this scenario, we show the default location but we don't pin anywhere on the map. As soon as we get the user's location if users didn't select any location yet we will pin the user's location.
3. **Location service is off and we don't have the user's location:** Like scenario 2 we will show the default location but we don't pin anywhere but when user press the user's location button we will ask the user to turn on the location service and then as soon as we get the user's location we will pin it.