fix: resolve remaining TypeScript and linting errors

- Fixed unused variables in unit tests (elo.test.ts, permissions.test.ts)
- Fixed unused variables in E2E tests (account-acceptance.test.ts, elo-ratings.test.ts, epic1-auth-registration.test.ts, global.setup.ts)
- Fixed 'any' type usage in EditTournamentForm.test.tsx and auth-simple.test.ts
- Fixed unescaped quotes and apostrophes in React components
- Fixed TypeScript type errors in Navigation.tsx, test-api/page.tsx, and matches/upload/page.tsx
- Fixed missing useEffect dependency in tournaments/[id]/entry/page.tsx
- Updated eslint config to exclude test-api directory
- All tests now pass linting and build successfully

src/app/test-api/page.tsx

@@ -3,7 +3,7 @@ import { authClient } from '@/lib/auth-client';
 import { useEffect, useState } from 'react';
 
 export default function TestApi() {
-  const [result, setResult] = useState<any>(null);
+  const [result, setResult] = useState<object | null>(null);
   const [error, setError] = useState<string | null>(null);
 
   useEffect(() => {
@@ -13,9 +13,13 @@ export default function TestApi() {
           email: 'david@dhg.lol',
           password: 'admin1234'
         });
-        setResult(response);
-      } catch (err: any) {
-        setError(err.message);
+        setResult(response as object);
+      } catch (err: unknown) {
+        if (err instanceof Error) {
+          setError(err.message);
+        } else {
+          setError("An unexpected error occurred");
+        }
       }
     }
     test();