Extension: add Kitronik Mai-Z the Mouse Bot (#6554)

Author: martinwork

docs/extensions/extension-gallery.md

@@ -553,6 +553,10 @@ Many extensions are available to work with interface kits, add-on hardware, or o
 
 ```codecard
 [{
+  "name": "Kitronik Mai-Z the Mouse Bot",
+  "url":"/pkg/KitronikLtd/pxt-kitronik-mai-z",
+  "cardType": "package"
+}, {
   "name": "DFRobot Creative Robotics Kit",
   "url":"/pkg/DFRobot/pxt-DFRobot_creative-robotics-kit",
   "cardType": "package"

targetconfig.json

@@ -489,6 +489,7 @@
             "forward-education/pxt-smart-hydroponics": { "tags": [ "Science" ] },
             "forward-education/pxt-climate-action": { "tags": [ "Science" ] },
             "elecfreaks/pxt-petal": { "tags": [ "Science" ] },
+            "kitronikltd/pxt-kitronik-mai-z": { "tags": [ "Robotics" ] },
             "microsoft/pxt-simx-sample": {
                 "simx": {
                     "sha": "7301f5900879b85127482d79bab48f03c25690a8",