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/core/_locales/core-jsdoc-strings.json

@@ -538,8 +538,6 @@
   "pins.C12": "Pin C12",
   "pins.C16": "Pin C16",
   "pins.C17": "Pin C17",
-  "pins.C18": "Pin C18",
-  "pins.C19": "Pin C19",
   "pins.C4": "Pin C4",
   "pins.C5": "Pin C5",
   "pins.C6": "Pin C6",