Dishwasher wheel clips (Ikea)

This clip is a replacement part for the tray wheels of AEG / Electrolux (Ikea). It is a redisgn of this part https://www.thingiverse.com/thing:2865745 which was working for a few monthes. Improvements are:

* the slit is turned by 90° to be located in a less "loaded" region
* the fixation length on the tray is around 5 mm longer
* the previous design was to "tight" for me, I made a bit more clearance
* a "support bridge" is added such that the part can be printed as is and the support is easily removeable.