Change Splash Screen implementation

[yashlamba]

Splash screen right now is inconsistent with the theme, it would be better to have a theme based splash screen for both iOS and Android implemented in flutter itself.

[Anjalidubey01]

Heyy I would like to work upon this issue.

[yashlamba]

Hey, @Anjalidubey01! It would be great if you could, have you set up the project? Let me know if you need any help :)

[himanshusharma89]

Hello, @yashlamba I would also like to contribute to this issue.

[yash2189]

hello @yashlamba I would like to contribute to this issue

[kmrakash]

I can work on this issue if not completed

[anotherwebguy]

Hey @yashlamba i have made a new splash screen for the simulate app should i make a pull request?

[Vrushti24]

hey @yashlamba can I work on this under gssoc?

[yashugarg]

hey @yashlamba can I work on this under gssoc?

@Vrushti24 please go ahead

[Vrushti24]

yeah thanks @yashugarg

[samrudhi0909]

Can I take up this , if not completed .

[Khushi-24]

@yashugarg Can I work on this issue if it is open?

[harshita2319]

Hey, I'm a Gssoc participant. Can I work on this issue if it's still available?

[deepsjuneja]

Can I work on this issue if not already assigned? Kindly respond @yashlamba

[Mohitmadhav]

@yashlamba can I work on this issue?

[yashlamba]

In this, we'll need, a short splash screen until assets load and then Hero into the home screen.

Specific to web for now.