[Update Extension] System Monitor - Fix battery level

[lucasmezencio]

Description

On Intel-based Macs, the output of ioreg -arn AppleSmartBattery is slightly different from the Apple Silicon. So, using another way to get the battery level.

This PR closes #15996.

Checklist

• I read the extension guidelines
• I read the documentation about publishing
• I ran npm run build and tested this distribution build in Raycast
• I checked that files in the assets folder are used by the extension itself
• I checked that assets used by the README are placed outside of the metadata folder

[raycastbot]

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🔔 @hossammourad @pernielsentikaer you might want to have a look.

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