[FEAT] Add custom widget visibility settings — show/hide dashboard cards

[Priyanshu-byte-coder]

Summary

Let users choose which widgets appear on their dashboard. Some users don't use Goals; others don't care about Language Breakdown. A simple show/hide toggle per widget in Settings makes the dashboard personal.

Motivation

As more widgets are added, the dashboard gets long. Users should own their layout.

Acceptance Criteria

• Settings page: new "Dashboard Widgets" section with a toggle per widget
• Widgets: Contribution Graph, Streak Tracker, PR Metrics, Top Repos, Language Breakdown, Goals, CI Analytics, Issues Tracker, Friend Comparison
• Preferences persisted in Supabase: new user_widget_prefs JSONB column on users table
• Dashboard reads prefs and conditionally renders each widget
• Newly added widgets default to visible
• Changes apply immediately (no page reload)
• Fallback: if prefs fetch fails, show all widgets

Files to Touch

• src/app/dashboard/settings/page.tsx
• src/app/dashboard/page.tsx
• src/app/api/user/settings/route.ts — extend to include widget prefs
• supabase/schema.sql

[abdullahxyz85]

Hi @Priyanshu-byte-coder I would like to work on this issue, please assign this issue to me under lable:
gssoc:approved as well.

[drb101005]

Hey @Priyanshu-byte-coder
Just read through the issue and understood it , i would love to work on it under GSSoC

Some ideas i have are :
To Store widget preferences per user in Supabase,

To Extend the settings API to read/write those preferences,

To Connect the toggles to conditional rendering so the dashboard updates instantly, no refresh needed,

To Default any newly added widgets to visible so nothing breaks silently,

And also Add a fallback for when preferences fail to load.

Open to feedback on the approach before I start. Thanks for the issue!

[Aarya1402]

Hi @Priyanshu-byte-coder, I would like to work on this issue under GSSoC 2026.
I’m interested in implementing the custom widget visibility settings feature, including the UI and persistence logic for dashboard preferences. Please assign this issue to me. Thanks!