Update functions.dart

[Mahfa]

fix RTL issue

[clragon]

Could you explain which issue exactly?
Is there a reason we are adding this Directionality in the screenLock callback instead of inside the ScreenLock widget where we would only need to add it once?

[Mahfa]

@clragon
the issue is when the locale of the material app is set to a rtl locale like "fa" or "ps" the layout of the lock screen is wrong.

Is there a reason we are adding this Directionality in the screenLock callback instead of inside the ScreenLock widget where we would only need to add it once?

no there is not i just added it there for simplicity

[clragon]

Okay, awesome thank you.
Could you in that case move the Directionality widget inside of the ScreenLock widget?
That would be beneficial, I believe.