Quality of life updates

[scoobmx]

1. Offset marquee start positions so there's more time to read departure times as the app loads in
2. Add schema to set an optional api key if the user wants to use their own
3. Add encrypted personal key fallback for app longevity
4. Use caching for http requests

[tidbyt[bot]]

⚠️ The automated review process is experimental and likely has bugs. Please bear with us as we iron out the kinks and enable you to ship changes at high velocity 🚀

Next Steps

Hello! Thank you so much for your change 🤜 🤛 . There are a few things you need to do:

• [ ] Sign the CLA if you haven't already
• [ ] Ensure your build is green! Any problem will display a proposed solution to try out
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