ui: reset link color when bandwidth below threshold
ui: reset link color when bandwidth below threshold

Bug: #578

safchain/skydive,lebauce/skydive,skydive-project/skydive,safchain/skydive,safchain/skydive,lebauce/skydive,lebauce/skydive,safchain/skydive,skydive-project/skydive,skydive-project/skydive,skydive-project/skydive,skydive-project/skydive,lebauce/skydive,lebauce/skydive,safchain/skydive,skydive-project/skydive,safchain/skydive,lebauce/skydive,safchain/skydive,lebauce/skydive,skydive-project/skydive,lebauce/skydive,safchain/skydive