Chore: lint themes and layers

assets/layers/atm/atm.json

@@ -504,4 +504,4 @@
       ]
     }
   ]
-}
+}

assets/layers/charging_station/charging_station.json

@@ -5294,4 +5294,4 @@
     },
     "neededChangesets": 10
   }
-}
+}

assets/layers/elongated_coin/elongated_coin.json

@@ -386,4 +386,4 @@
     "accepts_debit_cards",
     "accepts_credit_cards"
   ]
-}
+}

assets/layers/rainbow_crossings/rainbow_crossings.json

@@ -134,4 +134,4 @@
       "lineCap": "square"
     }
   ]
-}
+}

assets/layers/shower/shower.json

@@ -244,4 +244,4 @@
     "fr": "Une couche affichant les douches (publiques)",
     "ca": "Una capa que mostra dutxes (públiques)"
   }
-}
+}