Android: back button will close the keyboard

src/UI/AllThemesGui.svelte

@@ -10,7 +10,7 @@
   import LoginToggle from "./Base/LoginToggle.svelte"
   import Pencil from "../assets/svg/Pencil.svelte"
   import Constants from "../Models/Constants"
-  import { Store, Stores, UIEventSource } from "../Logic/UIEventSource"
+  import { ImmutableStore, Store, Stores, UIEventSource } from "../Logic/UIEventSource"
   import ThemesList from "./BigComponents/ThemesList.svelte"
   import { MinimalThemeInformation } from "../Models/ThemeConfig/ThemeConfig"
   import Eye from "../assets/svg/Eye.svelte"
@@ -105,6 +105,14 @@
     }
   })
 
+  AndroidPolyfill.onBackButton((() => {
+    if(searchIsFocussed.data){
+      searchIsFocussed.set(false)
+      return true
+    }
+    return false
+  }), {returnToIndex: new ImmutableStore(false)})
+
   /**
    * Opens the first search candidate
    */

src/UI/Base/Searchbar.svelte

@@ -31,6 +31,8 @@
           inputElement?.select()
         }
       })
+    }else if(document.activeElement === inputElement){
+      inputElement?.blur()
     }
   })