Fix typo: change 'then' to 'the' (#5978)

The sentence reads:

In this solution, two separate conditions are used to insert a space between then name and the importance label.

It should read:
In this solution, two separate conditions are used to insert a space between the name and the importance label.

Author: Tunzeki

src/content/learn/conditional-rendering.md

@@ -626,7 +626,7 @@ export default function PackingList() {
 
 Note that you must write `importance > 0 && ...` rather than `importance && ...` so that if the `importance` is `0`, `0` isn't rendered as the result!
 
-In this solution, two separate conditions are used to insert a space between then name and the importance label. Alternatively, you could use a fragment with a leading space: `importance > 0 && <> <i>...</i></>` or add a space immediately inside the `<i>`:  `importance > 0 && <i> ...</i>`.
+In this solution, two separate conditions are used to insert a space between the name and the importance label. Alternatively, you could use a fragment with a leading space: `importance > 0 && <> <i>...</i></>` or add a space immediately inside the `<i>`:  `importance > 0 && <i> ...</i>`.
 
 </Solution>