ion-item-option will not expand in Ionic 4.0.0-beta.3

[paulsutherland]

Bug Report

Ionic Info

Ionic:
   Ionic Framework            : @ionic/angular 4.0.0-beta.3
   @angular-devkit/core       : 0.7.4
   @angular-devkit/schematics : 0.7.4
   @angular/cli               : 6.1.4
   @ionic/ng-toolkit          : 1.0.7
   @ionic/schematics-angular  : 1.0.5

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : ios 4.5.5

System:

   ios-deploy : 2.0.0
   ios-sim    : 7.0.0
   npm        : 6.3.0
   OS         : macOS
   Xcode      : Xcode 9.4.1 Build version 9F2000

Describe the Bug
Adding the attribute expandable on an ion-item-option does not result in the expected behaviour of expanding the option to take up the full width of the item.

Steps to Reproduce
Steps to reproduce the behavior:

1. Create a blank Ionic 4 project

ionic start ion-item-expanded blank --type=angular

2. Add the follow to the page content

    <ion-item-sliding>
      <ion-item>
        <ion-label>Item</ion-label>
      </ion-item>
      <ion-item-options side="end">
        <ion-item-option color="danger" expandable>Delete</ion-item-option>
      </ion-item-options>
    </ion-item-sliding>

3. Serve the app:

ionic serve

4. Observe the item will not expand the full width when sliding right to left.

Expected Behavior
The option should expand to take up the full width of the item.

[manucorporat]

Fixed by 127da1a

[ionitron-bot]

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