New supervision

- using fastAPI
- offline/online working
- warning if ZABBIX API is too long
- showing settings
- showing last ack message
- showing procedure
- menu split by SU team

css/font-awesome-4.7.0/scss/_list.scss

@@ -0,0 +1,19 @@
+// List Icons
+// -------------------------
+
+.#{$fa-css-prefix}-ul {
+  padding-left: 0;
+  margin-left: $fa-li-width;
+  list-style-type: none;
+  > li { position: relative; }
+}
+.#{$fa-css-prefix}-li {
+  position: absolute;
+  left: -$fa-li-width;
+  width: $fa-li-width;
+  top: (2em / 14);
+  text-align: center;
+  &.#{$fa-css-prefix}-lg {
+    left: -$fa-li-width + (4em / 14);
+  }
+}