+ client: added setup guide page and DNS addresses popover

Closes #605

client/src/components/ui/Popover.css

@@ -22,6 +22,16 @@
     height: 24px;
 }
 
+.popover__trigger--address {
+    top: 0;
+    margin: 0;
+    line-height: 1.2;
+}
+
+.popover__trigger--address:after {
+    display: none;
+}
+
 .popover__body {
     content: "";
     display: flex;
@@ -57,6 +67,38 @@
     border-top: 6px solid #585965;
 }
 
+.popover__body--address {
+    top: calc(100% + 10px);
+    right: 0;
+    left: initial;
+    bottom: initial;
+    z-index: 1;
+    min-width: 100px;
+    padding: 12px 18px;
+    font-weight: 700;
+    text-align: left;
+    white-space: nowrap;
+    transform: none;
+    cursor: default;
+}
+
+.popover__body--address:after {
+    top: -11px;
+    left: initial;
+    right: 40px;
+    border-top: 6px solid transparent;
+    border-bottom: 6px solid #585965;
+}
+
+.popover__body--address:before {
+    content: "";
+    position: absolute;
+    top: -7px;
+    left: 0;
+    width: 100%;
+    height: 10px;
+}
+
 .popover__trigger:hover + .popover__body,
 .popover__body:hover {
     visibility: visible;
@@ -73,6 +115,10 @@
     stroke: #66b574;
 }
 
+.popover__list--bold {
+    font-weight: 700;
+}
+
 .popover__list-title {
     margin-bottom: 3px;
 }