BUG: Fix Therapist app bugs on startup

[xkaper001]

Is there an existing issue for this?

• I have searched the existing issues

What happened?

📌 Issue Overview

Currently the therapist app contains many bugs:-

• Two splash screens reference in the app (causes breaking).
• main.dart has two refernces of splash screen which fails the build.
• the pubspec.yaml file doesn't contain flutter_dotenv but the app uses this package.
• intl package dependency issues.
• multiple session folders in lib/presentation
• multiple widgets folders in lib/presentation
• splash_screen.dart missed a }, failing the build.

🔍 Steps to Reproduce

1. Clone the repo (latest code).
2. flutter pub get in therapist app.
3. Observer pubspec.yaml issues.
4. After fixing those, run the app.
5. Observe issues.

🎯 Expected Behavior

The app should run smoothly error free when cloned directly from the main branch.

🚨 Actual Behavior

The app breaks on run.

💡 Suggested Improvements

Fix all the issues

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• I want to work on this issue

[xkaper001]

Hey @mdmohsin7 Fixes all the above mentioned issues in #76. Pls review.