finish SSH key support

src/ui/PassphraseInput.svelte

@@ -8,6 +8,11 @@
     export {classes as class};
 
     let show = false;
+    let input;
+
+    export function focus() {
+        input.focus();
+    }
 </script>
 
 
@@ -21,6 +26,7 @@
 
 <div class="join w-full has-[:focus]:outline outline-2 outline-offset-2 outline-base-content/20">
     <input
+        bind:this={input}
         type={show ? 'text' : 'password'}
         {value} {placeholder} {autofocus}
         on:input={e => value = e.target.value}