Stop regex from matching dashes in problem name

This change should fix #290

src/utilsPure.ts

@@ -2,6 +2,6 @@
 // They can still use VS Code type definitions.
 
 export const words_in_text = function (text: string) {
-    const regex = /[\p{L}-]+|[0-9]+/gu;
+    const regex = /[\p{L}]+|[0-9]+/gu;
     return text.match(regex);
 };