fix: Fix trivial issues in the Geolocator sample page

[AndrewKeepCoding]

GitHub Issue (If applicable): closes #

PR Type

What kind of change does this PR introduce?

• Other... Please describe: Fixed the following issues in the Geolocator sample page: A. GetGeoposition button vertical alignment B. Geolocator description

What is the current behavior?

A. The content of the GetGeoposition button is aligned to the top. B. The description says, "This sensor returns latitude, longitude, longitude and accuracy".

What is the new behavior?

A. The content is aligned to the center. B. The description says, "This sensor returns latitude, longitude, altitude and accuracy".

PR Checklist

Please check if your PR fulfills the following requirements:

• [ ] Tested on iOS.
• [ ] Tested on Wasm.
• [ ] Tested on Android.
• [ ] Tested on UWP.
• [ ] Tested in both Light and Dark themes.
• [ ] Associated with an issue (GitHub or internal)

Other information

Internal Issue (If applicable):

[CLAassistant]

All committers have signed the CLA.

[agneszitte]

Thank you a lot for your contribution @AndrewKeepCoding!

[welcome[bot]]

Congrats on your first pull-request! We ❤ the people who are involved in this project, and we’d love to pay it forward by sending you some swag. If you have any feedback (or ideas how to improve Uno as a open-source project) please open a feedback issue.

Merci beaucoup 👋