feat(app): added min route speed & max route speed station filters

src/components/StationsView/StationFilterCard.vue

@@ -108,6 +108,7 @@
                 :id="slider.id"
                 :min="slider.minRange"
                 :max="slider.maxRange"
+                :step="slider.step"
                 v-model="slider.value"
                 @change="handleInput"
               />

src/components/StationsView/typings.ts

@@ -36,6 +36,8 @@ export interface Filter {
   minOneWay: number;
   minTwoWayCatenary: number;
   minTwoWay: number;
+  minVmax: number;
+  maxVmax: number;
   'no-1track': boolean;
   'no-2track': boolean;
   'include-selected': boolean;