Beta updates (#117)

* fixes for beta

- hide blocks without function
- digital Pin selection bring P0 in first position
- add compass block to end confusion about "basic.showArrow(ArrowNames.North)"
- add approved repos
- add and sort preffered repos
- add prefferedPackages
- disable webUSB
- disable parts
- remove mobileSafariDownloadProtocol
- update socialOptions

* remove `preferredPackages` from `pxtarget`

* Beta updates

- removed robobit extension
- updated docs menu
- added about.md
- added arrow icons
- removed show arrow block

* Beta Update

- replace webUSb Images
- update extension list
- hide II2C Pins from digitalPins
- move compile service repos back to calliope

* replace extension images

* Beta update

- change extension upload button style
- deprecate arrow blocks

Co-authored-by: Juri <gitkraken@juriwolf.de>

libs/servo/pxt.json

@@ -6,6 +6,7 @@
         "ns.ts",
         "targetoverrides.ts"
     ],
+    "icon": "./static/packages/servo/icon.png",
     "public": true,
     "dependencies": {
         "core": "file:../core"