Revert "feat: reduce number of font sizes used"

This reverts commit 965e6dfb26.
Using variable fonts means modern browsers don't need to load different the font sizes anymore.

src/components/Exp/Content.tsx

@@ -80,7 +80,7 @@ const btn = css`
 	}
 
 	& h5 {
-		font-weight: 500;
+		font-weight: 400;
 		margin-block-start: 0.2rem;
 	}
 `;

src/components/Exp/Story.tsx

@@ -22,6 +22,7 @@ const story = css`
 			column-count: 3;
 			column-gap: 2.5rem;
 			color: var(--text-subdued);
+			font-weight: 400;
 
 			& p {
 				font-size: 0.9rem;

src/index.css

@@ -5,7 +5,7 @@
 	--card-tags-hover: rgb(25, 25, 25);
 	--primary-colour: rgb(255, 85, 85);
 	--text-colour: rgb(211, 207, 201);
-	--text-subdued: rgb(130, 130, 130);
+	--text-subdued: rgb(150, 150, 150);
 	--card-active: rgb(45, 45, 45);
 	--card-active-border: rgb(60, 60, 60);
 	--card-hover: rgb(15, 15, 15);