fix: use supported languages only for install form (#2844)

web/app/activate/activateForm.tsx

                 </label>
                 <div className="relative mt-1 rounded-md shadow-sm">
                   <SimpleSelect
-                    defaultValue={defaultLanguage()}
-                    items={languages}
+                    defaultValue={LanguagesSupported[0]}
+                    items={languages.filter(item => item.supported)}
                     onSelect={(item) => {
                       setLanguage(item.value as string)
                     }}