Fix software rendering fallback

[RagnarLothbrok-Odin]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature

What is the current behavior?

When hardware acceleration is disabled or the browser falls back to software WebGL, the Vanta background can fail to become ready and the loading screen can spin forever. Decorative blur layers can also render as hard-edged gradient blocks in software rendering mode.

Issue Number: N/A

What is the new behavior?

• Bypasses the Vanta background when accelerated WebGL is unavailable.
• Lets the loading screen fail open instead of waiting indefinitely.
• Disables expensive blur and animation effects in software rendering mode.

Other information

Verification:

• Tested manually with hardware acceleration disabled.
• bun run lint
• git diff --check

[codacy-production]

Not up to standards ⛔

🔴 Issues 2 minor

Alerts:
⚠ 2 issues (≤ 0 issues of at least minor severity)

Results:
2 new issues

Category	Results
CodeStyle	2 minor

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🟢 Metrics 0 duplication

Metric	Results
Duplication	0

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