feat: enhance Idea Wall UI with team status and size

[floppa-png]

Description

This PR enhances the Idea Wall Submissions by introducing two highly requested visual indicators for community projects:

1. Team Size Indicator: Added a layout section to display the total number of people currently collaborating on a repository.
2. Team Status Badges: Added conditional badges to clearly show if a team is "Looking for Team" (emerald) or if the "Team Full" (rose).

All UI changes were built to be deeply defensive—if the database columns are missing, the UI gracefully falls back and renders safely.

⚠️ Important Note for Database Admin

Before merging this PR, the following SQL migration must be run in the Supabase SQL Editor to add the required columns to the ideawall table. The frontend checks are defensive, so merging this early will not crash production, but the features will not appear until this script is executed.

-- Migration: Add collaborator and team status columns to ideawall
ALTER TABLE public.ideawall
ADD COLUMN collaborator_count INTEGER DEFAULT 1,
ADD COLUMN open_for_team BOOLEAN DEFAULT true;

[vercel]

@floppa-png is attempting to deploy a commit to the Naveen U's projects Team on Vercel.

A member of the Team first needs to authorize it.

[floppa-png]

This is how it is supposed to look for reference purpose