[Glitch] Add button to view context to media modal

Port eb63217210 to glitch-soc

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

app/javascript/flavours/glitch/styles/components/media.scss

@@ -270,6 +270,31 @@
   pointer-events: none;
 }
 
+.media-modal__meta {
+  text-align: center;
+  position: absolute;
+  left: 0;
+  bottom: 20px;
+  width: 100%;
+  pointer-events: none;
+
+  &--shifted {
+    bottom: 62px;
+  }
+
+  a {
+    text-decoration: none;
+    font-weight: 500;
+    color: $ui-secondary-color;
+
+    &:hover,
+    &:focus,
+    &:active {
+      text-decoration: underline;
+    }
+  }
+}
+
 .media-modal__page-dot {
   display: inline-block;
 }
@@ -519,6 +544,23 @@
     }
   }
 
+  &__link {
+    padding: 2px 10px;
+
+    a {
+      text-decoration: none;
+      font-size: 14px;
+      font-weight: 500;
+      color: $white;
+
+      &:hover,
+      &:active,
+      &:focus {
+        text-decoration: underline;
+      }
+    }
+  }
+
   &__seek {
     cursor: pointer;
     height: 24px;