Accuracy warning while recording a feature

[sklencar]

• should be visible while recording a new feature or edit geometry of existing feature
• should be visible if accuracy is none or bellow limit set in settings
• if there is no gps position, only a toast will be shown as before
• It seems that position kit remembers last position. Therefore in the case when gps services are turned of, the gps warning banner will be shown instead of the toast.
• shown GPS accuracy - precision 1 decimal

Banner has still simple design with suggested colors. Would be good to ask Rado for a desing.
This PR also stressed #1225 even more.

closes #1192

[saberraz]

Notes:

• The warning will appear only if GPS is used for capturing points (i.e. when user moves the map the warning will disappear)
• Display the warning when using "streaming"
• A setting option (below Accuracy threshold) to disable the warning (warning will be on by default)
• Link to documentation for what these stuff mean

[tomasMizera]

The banner looks and works very well 🚀

One more note:

• Turn off location service, you will get 2 notifications about no GPS (banner and toast) - this could be handled differently

• Moreover, it shows -1m in that case ^^

[sklencar]

@saberraz For time-being, the link in the warning takes a user to https://help.inputapp.io/. Is there any more specific link we want to have it there instead?

[saberraz]

@sklencar could you point it to https://help.inputapp.io/howto/gps_accuracy

[wonder-sk]

I would suggest few more changes:

• move the warning to the top of the screen (as discussed in the last call)
• add some light shadow around the whole rectangle so that it stands out from the map a bit
• use black foreground color and some brigher yellow (let's try e.g. #ffff99) - the green-on-orange looks a bit dull to me
• the two different sizes of text look a bit strange to me - probably better use just a single font size
• Instead of "More information [here]" it would be good to have "[Learn more]" link, probably preceded with a sentence giving a bit of clue... e.g. "Please make sure you have good view of the sky. [Learn more]" -- I'm sure PeteW can then come up with a better copy text :-)

[tomasMizera]

Great job, it is working very well!

I would maybe change the text so that it is clear why we ask user to have a nice view of the sky (there is now nothing written about GPS accuracy), but for sure @mostlyAtNight will come up with something :)
Other than that, I am ok to merge!

[wonder-sk]

@sklencar ah yes can we please keep also the first sentence (Low GPS position accuracy (XXX m)) - and below that let's have the second sentence about the view of the sky - sorry if I was unclear with my comments.

Looks like there are also some conflicts now from the other merges - could you please rebase?

[sklencar]

Added additional text to banner