fix(ui): Fixes white bg on settings screen

[leonardocustodio]

Fixes a white bg on settings screen
Also fixes the .env not being loaded on bun run preview

[github-actions]

Bundle Size Report

Chunks over 500 KB:

File	Raw	Brotli	Gzip
host/assets/index.js	545.3 KB	148.3 KB (-107 B)	176.4 KB (-6 B)
host/assets/paseo.smol-DboPaEh1.json	1.84 MB	941.7 KB	1019.4 KB
host/assets/paseo-people-next.smol.json	3.36 MB	1.68 MB	1.82 MB
host/assets/previewnet.smol.json	810.7 KB	116.0 KB	149.3 KB
host/assets/smoldot_worker.js	2.92 MB	2.19 MB	2.20 MB
sandbox/assets/index.js	555.8 KB	152.8 KB (-112 B)	181.7 KB (-1 B)
Total	11.21 MB (-12.0 KB)	5.61 MB (-7.6 KB) (-50%)	6.00 MB (-8.3 KB)

All files

File	Raw	Brotli	Gzip
host/.well-known/apple-app-site-association	738 B	738 B	738 B
host/.well-known/assetlinks.json	986 B	986 B	986 B
host/assets/auth.js	461.3 KB	175.4 KB (+49 B)	221.4 KB
host/assets/blake2.js	10.2 KB	3.2 KB (-4 B)	3.7 KB (-1 B)
host/assets/bridge.js	5.3 KB	1.8 KB (+1 B)	2.0 KB (-2 B)
host/assets/browser.js	22.9 KB	7.6 KB	8.6 KB
host/assets/client.js	93.0 KB	27.4 KB (-8 B)	30.1 KB (+2 B)
host/assets/container.js	52.3 KB	13.0 KB (-45 B)	14.7 KB
host/assets/dist.js	20.6 KB (-8.2 KB)	4.8 KB (-5.2 KB)	5.4 KB (-5.7 KB)
host/assets/dist.js	28.8 KB	10.0 KB (+20 B)	11.1 KB (-1 B)
host/assets/dist.js	24.8 KB (-3.9 KB)	7.7 KB (-2.3 KB)	8.6 KB (-2.5 KB)
host/assets/dotli-debug-bus.js	495 B	495 B	495 B
host/assets/index.js	545.3 KB	148.3 KB (-107 B)	176.4 KB (-6 B)
host/assets/index.css	46.6 KB (+67 B)	7.2 KB (+9 B)	8.1 KB (+5 B)
host/assets/log.js	992 B	992 B	992 B
host/assets/manifest.js	22.6 KB	7.3 KB (-1 B)	8.0 KB (-1 B)
host/assets/nanoevents.js	215 B	215 B	215 B
host/assets/nova-scale.js	6.7 KB	2.6 KB	2.9 KB
host/assets/panel.js	84.9 KB	23.1 KB (+13 B)	26.3 KB
host/assets/paseo.smol-DboPaEh1.json	1.84 MB	941.7 KB	1019.4 KB
host/assets/paseo-people-next.smol.json	3.36 MB	1.68 MB	1.82 MB
host/assets/paseo.smol.json	129.8 KB	22.9 KB	31.8 KB
host/assets/previewnet.smol.json	810.7 KB	116.0 KB	149.3 KB
host/assets/resolve.js	152 B	152 B	152 B
host/assets/rolldown-runtime.js	694 B	694 B	694 B
host/assets/rpc-resolve.js	2.5 KB	1.0 KB (+15 B)	1.2 KB (-2 B)
host/assets/shared-mode.js	1.8 KB	785 B	879 B
host/assets/smoldot_worker.js	2.92 MB	2.19 MB	2.20 MB
host/assets/spans.js	1.7 KB	812 B	970 B
host/assets/src.js	1.9 KB	902 B (+12 B)	999 B
host/assets/styles.css	15.1 KB	3.2 KB	3.8 KB
host/assets/substrate-client.js	7.2 KB	2.7 KB (-3 B)	3.0 KB (-5 B)
host/assets/ws.js	25.8 KB	8.4 KB (+7 B)	9.1 KB (+1 B)
host/dotli.png	11.5 KB	11.5 KB	11.5 KB
host/favicon.svg	1.8 KB	1.8 KB	1.8 KB
host/host-sw.js	2.8 KB	1.1 KB (-16 B)	1.2 KB (-3 B)
host/icon-192.png	12.5 KB	12.5 KB	12.5 KB
host/icon-512.png	42.8 KB	42.8 KB	42.8 KB
host/index.html	20.1 KB	4.4 KB (+4 B)	5.4 KB
host/manifest.webmanifest	441 B	441 B	441 B
host/workbox.js	14.8 KB	4.6 KB	5.1 KB
sandbox/app-sw.js	8.7 KB	2.8 KB (+2 B)	3.2 KB (-1 B)
sandbox/assets/bitswap-bridge.js	840 B	840 B	840 B
sandbox/assets/fetch.js	3.4 KB	1.2 KB (-1 B)	1.4 KB
sandbox/assets/index.js	555.8 KB	152.8 KB (-112 B)	181.7 KB (-1 B)
sandbox/assets/index.css	46.6 KB (+67 B)	7.2 KB (+9 B)	8.1 KB (+5 B)
sandbox/favicon.svg	1.8 KB	1.8 KB	1.8 KB
sandbox/index.html	1.7 KB	579 B (-5 B)	786 B (-2 B)
Total	11.21 MB (-12.0 KB)	5.61 MB (-7.6 KB) (-50%)	6.00 MB (-8.3 KB)

_{Commit: b8ff760}

[github-actions]

⚠️ E2E Product suite skipped — Nova signing bot is unavailable.

This is a Nova-side outage and not a dot.li test failure. Re-run
from the Actions tab once the bot recovers.

Logs: https://github.com/paritytech/dotli-community/actions/runs/27496351114