send uuid in HTTP request

[PeterPetrik]

Add GUID to each HTTP request and also show it in the diagnosis log. GUID is generated on first run or the app.
We use X-Device-Id with uuid as custom header

[github-actions]

Pull Request Test Coverage Report for Build 8875858600

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 380 unchanged lines in 7 files lost coverage.
• Overall coverage increased (+0.03%) to 60.053%

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Files with Coverage Reduction	New Missed Lines	%
input/app/projectsmodel.cpp	1	69.17%
input/core/merginuserinfo.cpp	3	72.99%
input/app/inputhelp.cpp	15	36.36%
input/core/coreutils.cpp	19	86.39%
input/app/appsettings.cpp	34	72.32%
input/app/main.cpp	58	32.75%
input/core/merginapi.cpp	250	78.49%

Totals
Change from base Build 8843206479:	0.03%
Covered Lines:	7658
Relevant Lines:	12752

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💛 - Coveralls

[tomasMizera]

The implementation looks good, let's see where to add it

[mostlyAtNight]

Hi @PeterPetrik ,

Regarding how to send it, I would also be fine with it going in its own header, we should be able to accomodate that in the backend. This SE page may be useful for how to name a new one if we cannot find something appropriate to put it into.

Re the implementation itself, I have a question. I assume the UUID is automatically generated when the app is installed - is it subsequently readable and editable by the user? If so, I'm not sure this would be wise and I would instead opt for it to be stored in scoped storage or similar so it's protected from editing/cloning.

[PeterPetrik]

Looks like non standart headers might be blocked by firewall, what name you suggest?

Re implementation, only way how to reset it for user easily is to really remove the app completely and install from scratch.

[PeterPetrik]

@varmar05 can you please secure server implementation? thanks