Fix setting multiline admin settings.

apps/admin.json

@@ -1,5 +1,5 @@
 {
 	"type": "tildefriends-app",
 	"emoji": "🎛",
-	"previous": "&vhsb+Y1QdkPY1n3XxGVL2SgJQo8JnLkjhaFdCa+08GQ=.sha256"
+	"previous": "&vrpS/vE7n588iYv1p8HafDxHB+YDHTrtUbJiu9nGA9I=.sha256"
 }

apps/admin/script.js

@@ -45,7 +45,7 @@ window.addEventListener('load', function () {
 					<label class="w3-quarter" for=${'gs_' + key} style="font-weight: bold">${key}</label>
 					<div class="w3-rest w3-padding">${description.description}</div>
 					<textarea class="w3-input" style="vertical-align: top; resize: vertical" id=${'gs_' + key}>${description.value}</textarea>
-					<button class="w3-button w3-right w3-quarter w3-theme-action" @click=${(e) => global_settings_set(key, e.srcElement.previousElementSibling.firstElementChild.value)}>Set</button>
+					<button class="w3-button w3-right w3-quarter w3-theme-action" @click=${(e) => global_settings_set(key, e.srcElement.previousElementSibling.value)}>Set</button>
 				</li>
 			`;
 		} else {