Add Prettier and ESLint tooling (Refs #77)

tests/unit/ui-view-transition.test.ts

@@ -5,18 +5,29 @@ afterEach(() => vi.unstubAllGlobals());
 
 it('allows navigation to continue when a transition is skipped or superseded', async () => {
     let finish: () => void = () => {};
-    const finished = new Promise<void>(resolve => { finish = resolve; });
+    const finished = new Promise<void>((resolve) => {
+        finish = resolve;
+    });
     const complete = Promise.reject(new Error('navigation aborted'));
-    vi.stubGlobal('document', { startViewTransition: (update: () => Promise<void>) => {
-        void update().then(finish);
-        return { ready: Promise.reject(new DOMException('Skipped transition', 'AbortError')), finished };
-    } });
+    vi.stubGlobal('document', {
+        startViewTransition: (update: () => Promise<void>) => {
+            void update().then(finish);
+            return {
+                ready: Promise.reject(new DOMException('Skipped transition', 'AbortError')),
+                finished
+            };
+        }
+    });
     await enableViewTransitions({ complete });
     await finished;
 });
 
 it('continues without animation when the browser cannot start a transition', async () => {
-    vi.stubGlobal('document', { startViewTransition: () => { throw new Error('Unavailable'); } });
+    vi.stubGlobal('document', {
+        startViewTransition: () => {
+            throw new Error('Unavailable');
+        }
+    });
     await enableViewTransitions({ complete: Promise.resolve() });
     vi.stubGlobal('document', {});
     expect(enableViewTransitions({ complete: Promise.resolve() })).toBeUndefined();