refactor(username): update db query to use findFirst instead of findUnique

Author: f

src/app/[username]/opengraph-image.tsx

@@ -47,8 +47,8 @@ export default async function OGImage({ params }: { params: Promise<{ username:
   }
   const username = decodedUsername.slice(1);
 
-  const user = await db.user.findUnique({
-    where: { username },
+  const user = await db.user.findFirst({
+    where: { username: { equals: username, mode: "insensitive" } },
     select: {
       id: true,
       name: true,

src/app/[username]/page.tsx

@@ -36,8 +36,8 @@ export async function generateMetadata({ params }: UserProfilePageProps): Promis
 
   const username = decodedUsername.slice(1);
 
-  const user = await db.user.findUnique({
-    where: { username },
+  const user = await db.user.findFirst({
+    where: { username: { equals: username, mode: "insensitive" } },
     select: { name: true, username: true },
   });
 
@@ -70,8 +70,8 @@ export default async function UserProfilePage({ params, searchParams }: UserProf
 
   const username = decodedUsername.slice(1);
 
-  const user = await db.user.findUnique({
-    where: { username },
+  const user = await db.user.findFirst({
+    where: { username: { equals: username, mode: "insensitive" } },
     select: {
       id: true,
       name: true,