fix(dav): Use an icon with correct color for calendar user settings section

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

apps/dav/img/calendar.svg

@@ -0,0 +1 @@
+<svg height="16" width="16" xmlns="http://www.w3.org/2000/svg" version="1.1" viewbox="0 0 16 16"><path fill="#000" d="m4 1c-0.5 0-1 0.5-1 1v2c0 0.5 0.5 1 1 1s1-0.5 1-1v-2c0-0.5-0.5-1-1-1zm8 0c-0.5 0-1 0.5-1 1v2c0 0.5 0.5 1 1 1s1-0.5 1-1v-2c0-0.5-0.5-1-1-1zm-6.5 2v1c0 0.831-0.5 1.5-1.5 1.5s-1.5-0.5-1.5-1.5v-0.9375c-0.8841 0.227-1.5 1.0247-1.5 1.9375v8c0 1.108 0.892 2 2 2h10c1.108 0 2-0.892 2-2v-8c0-0.9128-0.61588-1.7105-1.5-1.9375v0.9375c0 0.831-0.5 1.5-1.5 1.5s-1.5-0.5-1.5-1.5v-1zm7.5 5v5h-10v-5z"/></svg>

apps/settings/lib/Sections/Personal/Calendar.php

@@ -38,7 +38,7 @@ class Calendar implements IIconSection {
 	}
 
 	public function getIcon(): string {
-		return $this->urlGenerator->imagePath('core', 'caldav/time.svg');
+		return $this->urlGenerator->imagePath('dav', 'calendar.svg');
 	}
 
 	public function getID(): string {