[Glitch] Add interrelationship icon

Port SCSS changes from f0a79a9fa8 to glitch-soc

Signed-off-by: Thibaut Girka <thib@sitedethib.com>

app/javascript/flavours/glitch/styles/variables.scss

@@ -36,6 +36,8 @@ $dark-text-color: $ui-base-lighter-color !default;
 $secondary-text-color: $ui-secondary-color !default;
 $highlight-text-color: $ui-highlight-color !default;
 $action-button-color: $ui-base-lighter-color !default;
+$passive-text-color: $gold-star !default;
+$active-passive-text-color: $success-green !default;
 // For texts on inverted backgrounds
 $inverted-text-color: $ui-base-color !default;
 $lighter-text-color: $ui-base-lighter-color !default;

app/javascript/flavours/glitch/styles/widgets.scss

@@ -437,6 +437,26 @@
     vertical-align: initial !important;
   }
 
+  &__interrelationships {
+    width: 21px;
+  }
+
+  .fa {
+    font-size: 16px;
+
+    &.active {
+      color: $highlight-text-color;
+    }
+
+    &.passive {
+      color: $passive-text-color;
+    }
+
+    &.active.passive {
+      color: $active-passive-text-color;
+    }
+  }
+
   @media screen and (max-width: $no-gap-breakpoint) {
     tbody td.optional {
       display: none;