fix: Remove brightness filter on secondary footer logos

[JF-Cozy]

We had previously done this thinking that it would be generic to all partners, but it is specific to some. We're also adding css classes to better control these elements on the partner side.

### 🐛 Bug Fixes

* Remove brightness filter on secondary footer logos

[cballevre]

LGTM 👍

[bundlemon]

BundleMon

Files updated (1)

Status	Path	Size	Limits
✅	intents/home.(hash).js	25.42KB (+11B +0.04%)	35KB

Unchanged files (12)

Status	Path	Size	Limits
✅	vendors/home.(hash).js	1.48MB	1.5MB
✅	services/softDeleteOrRestoreAccounts/home.js	463.5KB	490KB
✅	services/updateAccounts/home.js	460.62KB	467KB
✅	services/deleteAccounts/home.js	308.86KB	500KB
✅	services/myselfFromIdenties/home.js	233.45KB	245KB
✅	services/polyfillFetch/home.js	97.37KB	99KB
✅	app/home.(hash).js	44.25KB	50KB
✅	vendors-home.(hash).(hash).min.css	38.77KB	40KB
✅	services/attributesHelpers/home.js	15.22KB	16KB
✅	app-home.(hash).min.css	1.78KB	15KB
✅	intents/index.html	651B	1KB
✅	intents-home.(hash).min.css	158B	6KB

Total files change +5B 0%

Final result: ✅

View report in BundleMon website ➡️

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