Replace the scan Tab with FAB in Homepage

[Bahaaib]

Summary
The Scan Tab seems violating the material design guidelines as its behavior is not compatible with the other tabs. (2 Tabs display data and 1 taking actions).
The tab corresponding actions would be took over by a FAB which is the most convenient candidate to the job

[0crat]

@ammaratef45/z please, pay attention to this issue

[0crat]

@Bahaaib/z this project will fix the problem faster if you donate a few dollars to it; just click here and pay via Stripe, it's very fast, convenient and appreciated; thanks a lot!

[0pdd]

@Bahaaib the puzzle #64 is still not solved.

[0crat]

Job gh:ammaratef45/attendance#62 is not assigned, can't get performer

[0crat]

This job is not in scope

[0pdd]

@Bahaaib the puzzle #66 is still not solved; solved: #64.