security: upgrade KaTeX to 0.18.2 across active renderers

package.json

@@ -46,7 +46,7 @@
 		"dagre-d3-es": "7.0.14",
 		"electron-updater": "^6.8.9",
 		"embla-carousel-react": "^8.6.0",
-		"katex": "^0.16.47",
+		"katex": "0.18.2",
 		"linkedom": "^0.18.13",
 		"lucide-react": "^1.33.0",
 		"media-chrome": "^4.19.2",
@@ -70,6 +70,9 @@
 		"use-stick-to-bottom": "^1.1.6",
 		"zod": "^4.4.3"
 	},
+	"overrides": {
+		"katex": "$katex"
+	},
 	"devDependencies": {
 		"@next/eslint-plugin-next": "^16.3.3",
 		"@tailwindcss/postcss": "^4.3.3",