refactor: Replacing username with name in TopList component. (#115)

* Changed instances of "user.username" to "user.name" in "components/top-list.tsx", in line 88.

* fix: Type 'string | null' is not assignable to type 'string | number'

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Co-authored-by: Osama Mabkhot <99215291+O2sa@users.noreply.github.com>

Author: R0gnva1dr

components/top-list.tsx

@@ -85,7 +85,7 @@ export function TopList({ userResults }: Props) {
         <Card key={`top-${user.username}`}>
           <CardHeader>
             <CardTitle className="text-lg">
-              {t("topwork.titleForUser", { username: user.username })}
+              {t("topwork.titleForUser", { username: user.name || user.username })}
             </CardTitle>
             <CardDescription>{t("topwork.desc")}</CardDescription>
           </CardHeader>