design: Unify Markdown output style with `text` and `collectives` apps

Signed-off-by: Ferdinand Thiessen <rpm@fthiessen.de>

src/scssmixins/markdownOutput.scss

@@ -25,5 +25,45 @@
 		>:not(:first-child) {
 			margin-top: 1.5em;
 		}
+
+		blockquote {
+			padding-left: 1em;
+			border-left: 4px solid var(--color-primary-element);
+			color: var(--color-text-maxcontrast);
+		}
+
+		pre {
+			white-space: pre-wrap;
+			background-color: var(--color-background-dark);
+			border-radius: var(--border-radius);
+			padding: 1em 1.3em;
+		}
+
+		p code {
+			background-color: var(--color-background-dark);
+			border-radius: var(--border-radius);
+			padding: .1em .3em;
+		}
+
+		ul, ol {
+			padding-left: 10px;
+			margin-left: 10px;
+		}
+
+		ul {
+			> li {
+				list-style-type: disc;
+			}
+
+			// Second-level list entries
+			li ul > li {
+				list-style-type: circle;
+			}
+
+			// Third+-level list entries
+			li li ul > li {
+				list-style-type: square;
+			}
+		}
 	}
 }