Review of many feature switches and iframe context; fix OH-vis when ranges are not given

src/UI/BigComponents/CopyrightPanel.ts

@@ -40,8 +40,8 @@ export default class CopyrightPanel extends Combine {
         const t = Translations.t.general.attribution
         const layoutToUse = state.layout
 
-        const iconAttributions: BaseUIElement[] = layoutToUse
-            .getUsedImages()
+        const iconAttributions: BaseUIElement[] = Utils.Dedup(layoutToUse
+            .getUsedImages())
             .map(CopyrightPanel.IconAttribution)
 
         let maintainer: BaseUIElement = undefined

src/UI/BigComponents/ExtraLinkButton.svelte

@@ -11,10 +11,9 @@
   export let state: SpecialVisualizationState
   let theme = state.layout?.id ?? ""
   let config: ExtraLinkConfig = state.layout.extraLink
-  const isIframe = window !== window.top
   let basepath = window.location.host
   let showWelcomeMessageSwitch = state.featureSwitches.featureSwitchWelcomeMessage
-
+  const isIframe = Utils.isIframe
   const t = Translations.t.general
   const href = state.mapProperties.location.map(
     (loc) => {
@@ -36,7 +35,7 @@
       href={$href}
       target={config.newTab ? "_blank" : ""}
       rel="noopener"
-      class="pointer-events-auto flex rounded-full border-black"
+      class="button pointer-events-auto flex rounded-full border-black"
     >
       <Icon icon={config.icon} clss="w-6 h-6 m-2" />
 

src/UI/BigComponents/ThemeIntroPanel.svelte

@@ -15,6 +15,7 @@
   import Location_refused from "../../assets/svg/Location_refused.svelte"
   import Location from "../../assets/svg/Location.svelte"
   import ChevronDoubleLeft from "@babeard/svelte-heroicons/mini/ChevronDoubleLeft"
+  import Constants from "../../Models/Constants"
 
   /**
    * The theme introduction panel
@@ -149,13 +150,20 @@
     {/if}
   </div>
 
-  <If condition={state.featureSwitches.featureSwitchBackToThemeOverview}>
-    <div class="link-underline m-2 mx-4 flex w-full">
-      <!-- bottom buttons, a bit hidden away: switch layout -->
-      <a class="flex w-fit items-center justify-end" href={Utils.HomepageLink()}>
-        <ChevronDoubleLeft class="h-4 w-4" />
-        <Tr t={Translations.t.general.backToIndex} />
-      </a>
+  {#if Utils.isIframe}
+    <div  class="flex justify-end link-underline">
+    <a href="https://mapcomplete.org" target="_blank">
+      <Tr t={Translations.t.general.poweredByMapComplete}/>
+    </a>
     </div>
-  </If>
+  {:else}
+    <If condition={state.featureSwitches.featureSwitchBackToThemeOverview}>
+      <div class="link-underline m-2 mx-4 flex w-full">
+        <a class="flex w-fit items-center justify-end" href={Utils.HomepageLink()}>
+          <ChevronDoubleLeft class="h-4 w-4" />
+          <Tr t={Translations.t.general.backToIndex} />
+        </a>
+      </div>
+    </If>
+  {/if}
 </div>