Use warning icon instead of a glyph, move QR styles to comments

-since it's not used anywhere else at the moment

sass/_comments.scss

@@ -1,4 +1,17 @@
 section#comments {
+	#qrcode {
+		float: right;
+		margin: 3rem 0 0 1rem;
+		background-color: white;
+		padding: 12.5px;
+		width: 150px;
+		height: 150px;
+
+		@media only screen and (max-width: 720px) {
+			display: none;
+		}
+	}
+
 	#load-comments {
 		cursor: pointer;
 	}

sass/_qrcode.scss

@@ -1,12 +0,0 @@
-#qrcode {
-	float: right;
-	margin: 3rem 0 0 1rem;
-	background-color: white;
-	padding: 12.5px;
-	width: 150px;
-	height: 150px;
-
-	@media only screen and (max-width: 720px) {
-		display: none;
-	}
-}

sass/_variables.scss

@@ -45,8 +45,6 @@
 	}
 
 	@media (prefers-color-scheme: dark) {
-		color-scheme: dark;
-	
 		// COLORS
 		--bg-color: var(--bg-color-d);
 		--fg-color: rgb(255, 255, 255);
@@ -64,5 +62,7 @@
 		--red-fg: rgb(246, 97, 81);
 		--yellow-bg: rgba(248, 228, 92, 0.1);
 		--yellow-fg: rgb(248, 228, 92);
+
+		color-scheme: dark;
 	}
 }

sass/style.scss

@@ -21,6 +21,5 @@
 @use "nav";
 @use "not-found";
 @use "post-nav";
-@use "qrcode";
 @use "statements";
 @use "tags";