💄(frontend) align colors with theme from figma

Some colors were not exactly the same as the ones
in figma, this commit aligns them with the theme
tokens.

CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to
 
 - ♿️(frontend) prevent dates from being focusable #1855
 - ♿️(frontend) Focus main container after navigation #1854
+- 💄(frontend) align colors and logo with ui-kit v2 #1869
 - 🚸(backend) sort user search results by proximity with the active user #1802
 - 🚸(oidc) ignore case when fallback on email #1880