implemented password update procedure

frontend/src/translations.svelte.js

@@ -13,7 +13,7 @@ export function t(key,...args){
     for (let token of keys){
         if (!set[token]){
             console.log('Missing translation for '+key);
-            return keys[keys.length-1].replace('_',' ');
+            return keys[keys.length-1].replaceAll('_',' ');
         }
         set = set[token];
     }