Automaitcally copy invite information

src/components/ClientTile.tsx

@@ -42,7 +42,16 @@ const ClientTile: React.FC<IProps> = ({ client, link }: IProps) => {
     const inviteButton =
         client.kind === ClientKind.LINKED_CLIENT ? (
             <Button>Accept invite</Button>
-        ) : null;
+        ) : (
+            <Button
+                onClick={() =>
+                    navigator.clipboard.writeText(client.copyString(link))
+                }
+                flashChildren="Invite copied"
+            >
+                Copy invite
+            </Button>
+        );
 
     let clientTile = (
         <Tile className={className}>

src/components/InviteTile.tsx

@@ -61,6 +61,7 @@ const InviteTile: React.FC<IProps> = ({ children, client, link }: IProps) => {
             case ClientKind.TEXT_CLIENT:
                 // TODO: copy to clipboard
                 invite = <p>{client.toInviteString(link)}</p>;
+                navigator.clipboard.writeText(client.copyString(link));
                 inviteUseString = `These are instructions for ${client.name}.`;
                 break;
         }