fix: all index

docs/src/content/docs/es/index.mdx

@@ -13,7 +13,7 @@ hero:
       icon: right-arrow
       variant: primary
     - text: Ir al Desafío más reciente
-      link: /es/challenges/angular/50-bug-effect-signal/
+      link: /es/signal/angular/50-bug-effect-signal/
       icon: rocket
     - text: Dar una estrella
       link: https://github.com/tomalaforge/angular-challenges

docs/src/content/docs/fr/index.mdx

@@ -13,7 +13,7 @@ hero:
       icon: right-arrow
       variant: primary
     - text: Aller au dernier Challenge
-      link: /fr/challenges/angular/50-bug-effect-signal/
+      link: /fr/challenges/signal/50-bug-effect-signal/
       icon: rocket
     - text: Donne une étoile
       link: https://github.com/tomalaforge/angular-challenges

docs/src/content/docs/pt/index.mdx

@@ -13,7 +13,7 @@ hero:
       icon: right-arrow
       variant: primary
     - text: Ir para o desafio mais recente
-      link: /pt/challenges/angular/50-bug-effect-signal/
+      link: /pt/challenges/signal/50-bug-effect-signal/
       icon: rocket
     - text: Dar uma estrela
       link: https://github.com/tomalaforge/angular-challenges

docs/src/content/docs/ru/index.mdx

@@ -13,7 +13,7 @@ hero:
       icon: right-arrow
       variant: primary
     - text: Перейти к последней задаче
-      link: /ru/challenges/angular/50-bug-effect-signal/
+      link: /ru/challenges/signal/50-bug-effect-signal/
       icon: rocket
     - text: Добавить звезду
       link: https://github.com/tomalaforge/angular-challenges