🎨Design: make FilterBar and Banner components fully responsive

[woojo230]

#️⃣ Related Issue

e.g. Closes #26

📝 Description

• make FilterBar and Banner components fully responsive
• Add axios instance
• add global CSS to remove focus outlines from chart elements

📌 Notes

✅ Checklist

• Have you selected the reviewers?
• Have you assigned yourself?
• Is the target branch correct?
• Does this PR follow the project conventions?
• Does the code run without errors locally?
• Have unnecessary comments been removed?
• Is the code style consistent?

📷 Screenshots (Optional)

💬 Review Requests (Optional)

e.g. I'm looking for a better name for method XXX. Any suggestions?

[github-actions]

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