Fix input-group that cannot contains form-control-plaintext

Closes: https://github.com/happyDomain/happydomain/issues/3

ui/src/lib/components/resources/raw.svelte

@@ -63,7 +63,9 @@
             max={inputmax}
             placeholder={specs.placeholder}
             plaintext={!edit}
+            readonly={!edit}
             required={specs.required}
+            style="width: initial"
             bind:value={value}
             on:focus={() => dispatch("focus")}
             on:blur={() => dispatch("blur")}