Update challenge and homepage

content/pages/challenges/index.json

@@ -2,5 +2,5 @@
   "title": "Challenges",
   "description": "Ready to apply what you’ve learned in the Tracks? Try a Challenge! These one-off project videos build off concepts introduced in Tracks and may have prerequisites (listed on the challenge page itself).",
   "featuredText": "Featured Challenge:",
-  "featuredChallenge": "183-mathematical-marbling"
+  "featuredChallenge": "64-kinematics"
 }

content/pages/homepage/index.json

@@ -32,11 +32,11 @@
     "description": "Watch Dan take on Coding Challenges in p5.js and Processing. The challenge topics include algorithmic art, machine learning, simulation, generative poetry, and more.",
     "featured": [
       "183-mathematical-marbling",
-      "41-clappy-bird",
-      "148-gift-wrapping",
-      "58-3d-earthquake-data-visualization",
-      "101-may-the-4th-scrolling-text",
-      "c1-maurer-rose"
+      "64-kinematics",
+      "125-fourier-series",
+      "28-metaballs",
+      "116-lissajous-curve-table",
+      "170-monty-hall-problem"
     ],
     "challengesCta": {
       "text": "ready to explore? try a challenge!",
@@ -47,14 +47,14 @@
   "passengerShowcase": {
     "title": "Passenger showcase highlights",
     "featured": [
-      "challenges/183-mathematical-marbling/showcase/contribution-1714718039.json",
-      "challenges/183-mathematical-marbling/showcase/contribution-1715194171.json",
-      "challenges/78-simple-particle-system/showcase/contribution-1714737129.json",
-      "challenges/30-phyllotaxis/showcase/contribution-1714237829.json",
-      "physics-libraries/box2d/3-coordinate-and-vectors/showcase/contribution-1714548437.json",
-      "noc/3-angles/4-polar-coordinates/showcase/contribution-1714998108.json",
-      "code/1-intro/3-shapes-drawing/showcase/contribution-1713756411.json",
-      "challenges/181-image-stippling/showcase/contribution-1714302429.json"
+      "challenges/160-spring-forces/showcase/contribution-1717812105.json",
+      "noc/4-particles/1-particle-system/showcase/contribution-1716063723.json",
+      "challenges/183-mathematical-marbling/showcase/contribution-5.json",
+      "challenges/183-mathematical-marbling/showcase/contribution-1719747682.json",
+      "challenges/93-double-pendulum/showcase/contribution-1717095241.json",
+      "code/2-variables/5-map/showcase/contribution-1719881442.json",
+      "noc/3-angles/7-additive-waves/showcase/contribution-1719068587.json",
+      "challenges/10-dfs-maze-generator/showcase/contribution-1719932734.json"
     ],
     "showcaseCta": {
       "text": "Want to see more?",