fix(slider, demo): Fix SLider interval and Swiper demo

[jolevesq]

Closes #2229

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes #2229 and swiper demo

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.

Hosted June 26th, 10 am

• https://jolevesq.github.io/geoview/demos-navigator.html?config=./configs/navigator/10-package-time-slider.json
• https://jolevesq.github.io/geoview/package-swiper.html

Checklist:

• [x] I have build (rush build) and deploy (rush host) my PR
• [x] I have connected the issues(s) to this PR
• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] My changes generate no new warnings
• [ ] I have created new issue(s) related to the outcome of this PR is needed
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

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