[FE][Certs] Refresh register list on add

frontend/src/certs/Registers/index.tsx

@@ -5,10 +5,13 @@ import { Register } from "../../types/Register";
 import { courseMap } from "../../utils/allCourses";
 import { certGenerator } from "../../certGenerator";
 
-export function Registers(props: {person: Person | null}) {
+export function Registers(props: {person: Person | null, count: number}) {
     const [registers, setRegisters] = createSignal<Array<Register>>([]);
 
     createEffect(async() => {
+        // eslint-disable-next-line @typescript-eslint/no-unused-vars
+        const _count = props.count;
+
         if (props.person === null) {
             setRegisters([]);
             return;

frontend/src/certs/index.tsx

@@ -6,12 +6,16 @@ import { Person } from "../types/Person";
 
 export function Certs() {
     const [person, setPerson] = createSignal<Person | null>(null);
+    const [count, setCount] = createSignal(0);
 
     return (
         <div class="grid grid-cols-[16rem_25rem_1fr]">
             <Search setPerson={setPerson} />
-            <NewRegister personId={person()?.person_id ?? -1} onSuccess={() => {}} />
-            <Registers person={person()} />
+            <NewRegister
+                personId={person()?.person_id ?? -1}
+                onSuccess={() => setCount((x) => x + 1)}
+            />
+            <Registers person={person()} count={count()} />
         </div>
     );
 }