fix: resolve loading indicator issue with proper async handling (Level 2)

[prisha-sh]

📝 Description

Fixes the loading indicator behavior during weather data fetch by resolving an async flow issue. The loader was being hidden prematurely due to a missing await in the fallback request, which caused a blank or broken UI state.

This update ensures:

• Loader remains visible throughout the entire fetch process
• Proper async handling using await for fallback requests
• Clean and centralized loading state management
• Stable UI during both normal and fallback scenarios

This involves async flow correction and UI state coordination, making it suitable for a Level-2 classification.

🔗 Related Issue

Closes #31

🔄 Type of Change

• 🐛 Bug fix
• ✨ New feature
• 🔍 SEO improvement
• 🎨 Style / UI improvement
• ♿ Accessibility improvement
• 📝 Documentation
• ⚙️ CI / configuration
• 🧹 Refactor / cleanup

🧪 How to Test

1. Search for a city → loader appears during fetch
2. Allow location → observe loader works correctly
3. Simulate geolocation failure → fallback request triggers
4. Loader stays visible until all data loads
5. UI does not break or show blank state

📸 Screenshots (if applicable)

N/A

✅ Checklist

• My code follows the project's existing style
• I have tested my changes
• I have linked the related issue above
• My PR title follows Conventional Commits format

[ashujsrfox]

it conflicting with script