[BUG] PWA manifest references non-existent icon files preventing installability

[Siddh2024]

Description

The PWA manifest at public/manifest.json references icon files that do not exist:

• cube-icon-192.png — only cube-icon-192 (2).png exists (with space and suffix in filename)
• cube-icon-512.png — entirely missing

This means:

• On Android/Chrome, the 192x192 icon will fail to load
• The 512x512 icon is entirely missing
• The "Install App" prompt may never fire because the manifest is considered invalid
• The existing filename contains a space character and (2) suffix, which is an unintentional duplicate-file artifact

Location

public/manifest.json lines 6-14

Suggested Fix

1. Rename cube-icon-192 (2).png to cube-icon-192.png
2. Add a proper cube-icon-512.png file (or remove the 512 entry from manifest)

Please assign this issue to me @Siddh2024 so I can fix it.

[vaishnavi003-svg]

I would like to work on this issue. Please assign it to me under GSSoC 2026.
thank you