Accessibility: add (translatable) aria labels, update to translation system, see #1181

src/UI/Base/Dropdown.svelte

@@ -2,7 +2,6 @@
   import { UIEventSource } from "../../Logic/UIEventSource.js"
 
   export let value: UIEventSource<any>
-  let i: any = value.data
   let htmlElement: HTMLSelectElement
   function selectAppropriateValue() {
     if (!htmlElement) {

src/UI/Base/Tr.svelte

@@ -3,36 +3,20 @@
    * Properly renders a translation
    */
   import { Translation } from "../i18n/Translation"
-  import { onDestroy } from "svelte"
-  import Locale from "../i18n/Locale"
-  import { Utils } from "../../Utils"
-  import FromHtml from "./FromHtml.svelte"
   import WeblateLink from "./WeblateLink.svelte"
+  import { Store } from "../../Logic/UIEventSource"
 
   export let t: Translation
   export let cls: string = ""
-  export let tags: Record<string, string> | undefined = undefined
   // Text for the current language
-  let txt: string | undefined
+  let txt: Store<string | undefined> = t.current
+
 
-  $: onDestroy(
-    Locale.language.addCallbackAndRunD((l) => {
-      const translation = t?.textFor(l)
-      if (translation === undefined) {
-        return
-      }
-      if (tags) {
-        txt = Utils.SubstituteKeys(txt, tags)
-      } else {
-        txt = translation
-      }
-    })
-  )
 </script>
 
 {#if t}
   <span class={cls}>
-    <FromHtml src={txt} />
+    {$txt}
     <WeblateLink context={t.context} />
   </span>
 {/if}