Use a more random hash to generate user colors

Fixes an issue where most uses just had their color determined by their username length and distributes the colors a bit more evenly.

src/Utils.cpp

@@ -642,7 +642,7 @@ utils::linkColor()
 uint32_t
 utils::hashQString(const QString &input)
 {
-    auto h        = QCryptographicHash::hash(input.toUtf8(), QCryptographicHash::Sha1);
+    auto h = QCryptographicHash::hash(input.toUtf8(), QCryptographicHash::Sha1);
 
     return (h[0] << 24) ^ (h[1] << 16) ^ (h[2] << 8) ^ h[3];
 }