[Frontend] — ENHANCEMENT: Add Prediction Submission Modal Component

[Olowodarey]

Modal for submitting predictions for matches in a creator event. Users can predict outcomes for multiple matches at once.

Required Features

1. Match Selection:

   • List all unpredicted matches for the event
   • Filter: "All Matches", "Starting Soon", "By Date"
   • Checkbox to select multiple matches

2. Prediction Form (for each selected match):

   • Match details (Team A vs Team B, time)
   • Outcome selector: Team A, Team B, Draw (radio buttons or toggle)
   • Visual indicator of current selection

3. Batch Submission:

   • Review all predictions before submitting
   • "Submit All Predictions" button
   • Transaction signing
   • Progress indicator for multi-prediction submission

4. Validations:

   • Match must not have started
   • User must have joined event
   • User cannot predict same match twice
   • Outcome must be selected

5. Success State:

   • Show submitted predictions
   • "View My Predictions" button
   • "Predict More" button

Files to create:

• frontend/src/component/creator-events/PredictionModal.tsx
• frontend/src/component/creator-events/MatchPredictionCard.tsx