implementations + cleanup

web/src/pages/implementations/implementations.tsx

+import React from 'react'
+
+import { Text, Heading, Box } from '@chakra-ui/react'
+
+export const Implementations = () => {
+  return (
+    <Box>
+      <Heading as="h1" size="xl" mb="6">
+        Implementaciones
+      </Heading>
+      <Text fontSize="lg" mb="4">
+        Contenido de implementaciones
+      </Text>
+    </Box>
+  )
+}

web/src/pages/implementations/index.ts

+export * from './implementations'

web/src/pages/not-found/index.ts

+export * from './not-found'

web/src/pages/NotFoundPage/NotFoundPage.tsx → web/src/pages/not-found/not-found.tsx

-export default () => (
+export const NotFound = () => (
   <main>
     <style
       dangerouslySetInnerHTML={{