Root widget gets initialized twice

[ali-thowfeek]

Description
The root widget HomeScreen widget gets initialized twice at app start.
ie. initState() runs twice which is affects all it children, making them initialize freshly.

Possible cause
The implementation of the DropdownBanner package.

[ali-thowfeek]

@sachinPramodya this issue still persists. The main cause of this issue is as below.

https://www.github.com/ICTASL/MyHealthApp/tree/master/lib/main.dart

In the above file, line 38 (as of now) you can see that a global key variable is being declared in the build method, which very bad practice and also causes issues. This has been fixed in #198 by @avinath1998

Please do the necessary.