Merge pull request 'feat(#246): inline spoiler mark (blur + click-reveal, lossless Markdown)' (#259) from feat/246-spoiler into develop

Reviewed-on: #259

apps/client/src/features/editor/styles/index.css

@@ -14,6 +14,7 @@
 @import "./mention.css";
 @import "./ordered-list.css";
 @import "./highlight.css";
+@import "./spoiler.css";
 @import "./indent.css";
 @import "./columns.css";
 @import "./status.css";

apps/client/src/features/editor/styles/spoiler.css

@@ -0,0 +1,21 @@
+.spoiler {
+  background: rgba(0, 0, 0, 0.85);
+  border-radius: 0.25em;
+  cursor: pointer;
+  filter: blur(0.3em);
+  transition: filter 0.15s ease;
+  user-select: none;
+}
+
+.spoiler.is-revealed {
+  filter: none;
+  background: rgba(125, 125, 125, 0.18);
+  user-select: auto;
+}
+
+@media print {
+  .spoiler {
+    filter: none;
+    background: rgba(125, 125, 125, 0.18);
+  }
+}