Allow camera permission screen

[PierreBresson]

• [x] create the Allow camera permission screen
• [x] when clicking on Allow button, user should be presented the permission popup and if he has deny that, settings of the phone should be open, preferably settings page of NMF.earth
• [x] make sure that component re render on focus to detect any change in the settings

[hb2708]

@PierreBresson does this ticket aim to have a redesign for the existing screen / flow??

[PierreBresson]

@hb2708 good question, humm no, let's keep it like that for now.