fix: prevents default home page laggy scroll animation

[devxdebanjan]

Description

This PR fixes the default UI animation where the screen appears to contract on its own every time page is switched from Timer or Stopwatch to Home.

While testing it however I found another bug.

There is another problem which appears: the alarm swipe delete feature builds the whole alarm home page from scratch whenever the alarm is swiped to delete it. This is due to using onDismissed and using GetOffUntil rather than only confirmDismiss for the confirmation dialog box. Because merging the UI animation fix without the SwipeDelete fix would break things, both fixes are added together. But both of them are in complete different commits.

This is what could occur if the Confirmation Dialog Box issue was not fixed along with the Scroll Animation Issue:

issuevid2compressed.mp4

Proposed Changes

• On every rebuild of the Home Page, the Scaling Factor starts as a default 1.0 rather than any previously stored value which caused the animation.
• Collpased height matches the Expanded Height at the start of the widget.
• The confimation dialog box uses confirmDismiss instead of using onDismissed and forcing Get to rebuild the entire widget.

Fixes #869

Screenshots

issue1fix.mp4

Checklist

• Tests have been added or updated to cover the changes
• Documentation has been updated to reflect the changes
• Code follows the established coding style guidelines
• All tests are passing