Fixed unirf/fun.txt DOWN, LEFT and RIGHT entries so they point to actual SUB files.
Note that EU/AUS users might prefer those entries:
```
LEFT: /ext/subghz/Vehicles/Tesla/BEST_PORT_OPENER/433.92MHz_AM650_Better_Tesla_Charge_Port_Opener.sub
RIGHT: /ext/subghz/Vehicles/Tesla/BEST_PORT_OPENER/433.92MHz_AM270_Better_Tesla_Charge_Port_Opener.sub
```
UniRF remote for 0day's gas sign editor .sub files.
Requires manually running the edit .sub first due to only 5 buttons assignable to remote.
Confirmed working.