feat: add forumTopicId to challenge frontmatter [pre-existing]

This commit adds the pre-existing challenge guide topics in the
forum to the forntmatter of their challenge markdown files.

curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/convert-json-data-to-html.english.md

@@ -2,6 +2,7 @@
 id: 587d7fae367417b2b2512be5
 title: Convert JSON Data to HTML
 challengeType: 6
+forumTopicId: 16807
 ---
 
 ## Description

curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/get-geolocation-data-to-find-a-users-gps-coordinates.english.md

@@ -2,6 +2,7 @@
 id: 587d7faf367417b2b2512be8
 title: Get Geolocation Data to Find A User's GPS Coordinates
 challengeType: 6
+forumTopicId: 18188
 ---
 
 ## Description

curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/pre-filter-json-to-get-the-data-you-need.english.md

@@ -2,6 +2,7 @@
 id: 587d7fae367417b2b2512be7
 title: Pre-filter JSON to Get the Data You Need
 challengeType: 6
+forumTopicId: 18257
 ---
 
 ## Description

curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/render-images-from-data-sources.english.md

@@ -2,6 +2,7 @@
 id: 587d7fae367417b2b2512be6
 title: Render Images from Data Sources
 challengeType: 6
+forumTopicId: 18265
 ---
 
 ## Description