feat(dashboard): reset new member/group input after submit

dashboard/src/lib/group/NewGroup.svelte

@@ -30,7 +30,7 @@
         dispatch('create', input);
     }
 
-    let input: Group = defaultGroup;
+    let input: Group = JSON.parse(JSON.stringify(defaultGroup));
 
     async function submit() {
         let data = input;
@@ -51,7 +51,7 @@
         loading = true;
         try {
             let res = await api().groups().post({data});
-            input = res;
+            input = JSON.parse(JSON.stringify(defaultGroup));
             err = [];
             create();
             message = `Group ${data.name} successfully created!`

dashboard/src/lib/member/NewMember.svelte

@@ -33,7 +33,8 @@
         ]
     };
 
-    let input: Member = defaultMember;
+    // creating a deep copy here so that defaultMember doesn't get updated too
+    let input: Member = JSON.parse(JSON.stringify(defaultMember));
 
     const dispatch = createEventDispatcher();
 
@@ -91,7 +92,7 @@
             input = res;
             err = [];
             create();
-            input = defaultMember;
+            input = JSON.parse(JSON.stringify(defaultMember));;
             message = `Member ${data.name} successfully created!`
             loading = false;
         } catch (error) {