refactor(ComparisonView): import typography store via root barrel

comparisonStore reached getTypographySettingsStore through
$features/AdjustTypography/model (deep, past the public API) while the
catalog/lifecycle accessors already go through the $entities/Font root
barrel. Re-path to $features/AdjustTypography so all three composed-store
imports go through public APIs uniformly. Direction was always legal
(widget -> feature, downward); this only closes the deep-import
inconsistency.

Consolidate the spec mock onto the root module accordingly and drop the
now-dead /model mock.

src/widgets/ComparisonView/model/stores/comparisonStore.svelte.ts

@@ -26,7 +26,7 @@ import {
 import {
     type TypographySettingsStore,
     getTypographySettingsStore,
-} from '$features/AdjustTypography/model';
+} from '$features/AdjustTypography';
 import { createPersistentStore } from '$shared/lib';
 import { untrack } from 'svelte';
 import { getPretextFontString } from '../../lib';

src/widgets/ComparisonView/model/stores/comparisonStore.test.ts

@@ -84,6 +84,12 @@ vi.mock('$entities/Font/model', async importOriginal => {
     };
 });
 
+const mockTypography = vi.hoisted(() => ({
+    weight: 400,
+    renderedSize: 48,
+    reset: vi.fn(),
+}));
+
 vi.mock('$features/AdjustTypography', () => ({
     DEFAULT_TYPOGRAPHY_CONTROLS_DATA: [],
     createTypographyControlManager: vi.fn(() => ({
@@ -91,15 +97,6 @@ vi.mock('$features/AdjustTypography', () => ({
         renderedSize: 48,
         reset: vi.fn(),
     })),
-}));
-
-const mockTypography = vi.hoisted(() => ({
-    weight: 400,
-    renderedSize: 48,
-    reset: vi.fn(),
-}));
-
-vi.mock('$features/AdjustTypography/model', () => ({
     getTypographySettingsStore: () => mockTypography,
 }));