Enable translations in filter view

src/UI/BigComponents/Filterview.svelte

@@ -66,7 +66,7 @@
         />
       </If>
 
-      {filteredLayer.layerDef.name}
+      <Tr t={filteredLayer.layerDef.name}/>
 
       {#if $zoomlevel < layer.minzoom}
         <span class="alert">
@@ -82,7 +82,7 @@
             <!-- There are three (and a half) modes of filters: a single checkbox, a radio button/dropdown or with searchable fields -->
             {#if filter.options.length === 1 && filter.options[0].fields.length === 0}
               <Checkbox selected={getBooleanStateFor(filter)}>
-                {filter.options[0].question}
+                <Tr t={filter.options[0].question}/>
               </Checkbox>
             {/if}
 
@@ -94,7 +94,7 @@
               <Dropdown value={getStateFor(filter)}>
                 {#each filter.options as option, i}
                   <option value={i}>
-                    {option.question}
+                   <Tr  t={option.question}/>
                   </option>
                 {/each}
               </Dropdown>

src/UI/BigComponents/FilterviewWithFields.svelte

@@ -6,6 +6,7 @@
   import { UIEventSource } from "../../Logic/UIEventSource"
   import { onDestroy } from "svelte"
   import { Utils } from "../../Utils"
+  import Tr from "../Base/Tr.svelte"
 
   export let filteredLayer: FilteredLayer
   export let option: FilterConfigOption