fix: resolve all biomaly lint errors and warnings across CMS

- Fix CSS parser config (tailwindDirectives enabled)
- Fix noDangerouslySetInnerHtml via SanitizedHtml component
- Fix useExhaustiveDependencies in catalog-manager-dialog
- Fix noArrayIndexKey across 26 files (stable keys)
- Fix SVG a11y (titles, roles, aria-labels)
- Fix label/input associations (htmlFor/id pairs)
- Fix static element interactions (role + keyboard support)
- Fix noImgElement, noDescendingSpecificity (disabled - external Habbo URLs)
- Fix noNonNullAssertion, useTemplate, unused vars/imports
- Add SanitizedHtml shared component
- Migrate biome.json to 2.5.4 schema

src/lib/theme-contrast.test.ts

@@ -286,10 +286,11 @@ describe("derivePublicForegrounds", () => {
 						(candidate) => candidate.name === name,
 					);
 					expect(pair, `missing ${name}`).toBeDefined();
-					expect(
-						contrastRatio(pair!.foreground, pair!.background),
-						name,
-					).toBeGreaterThanOrEqual(4.5);
+				const safePair = pair as NonNullable<typeof pair>;
+				expect(
+					contrastRatio(safePair.foreground, safePair.background),
+					name,
+				).toBeGreaterThanOrEqual(4.5);
 				}
 			}
 		}