📦FEAT: `MUICollapsibleButton` class

[deepraj02]

trafficstars

closes #89

Added MUICollapsibleButton on top of existing MUIPrimaryButton class keeping all it's parameters accessible

Video (Demo):

Example

MUICollapsibleButton(
            actionIcon:
                isCollapsible ? Icons.arrow_drop_up : Icons.arrow_drop_down,
            collapsibleChild: const CollapsibleUnit(),
            text: 'Collapsible Button',
            onPressed: () {
              isCollapsible = !isCollapsible;
            },
          ),

[Utkarsh4517]

Please change the target branch to development from main

[deepraj02]

so do you want me to add a isCollapsible parameter to all the existing buttons which if true then we can perform the collapsible stuff

[Utkarsh4517]

Yeah I guess that would also work.

[deepraj02]

how about creating a named constructor for collapsible part

eg:

AnyButton.collapsible()

something like this