feat(ui): add knip + minimal config

https://knip.dev/

Replaces `unimported`

invokeai/frontend/web/.unimportedrc.json

@@ -1,9 +0,0 @@
-{
-  "entry": ["src/main.tsx"],
-  "extensions": [".ts", ".tsx"],
-  "ignorePatterns": ["**/node_modules/**", "dist/**", "public/**", "**/*.stories.tsx", "config/**"],
-  "ignoreUnresolved": [],
-  "ignoreUnimported": ["src/i18.d.ts", "vite.config.ts", "src/vite-env.d.ts"],
-  "respectGitignore": true,
-  "ignoreUnused": []
-}

invokeai/frontend/web/knip.json

@@ -0,0 +1,4 @@
+{
+  "$schema": "https://unpkg.com/knip@5/schema.json",
+  "ignore": ["src/features/nodes/types/v2/**/*", "src/features/nodes/types/v1/**/*"]
+}

invokeai/frontend/web/package.json

@@ -33,7 +33,7 @@
     "preinstall": "npx only-allow pnpm",
     "storybook": "storybook dev -p 6006",
     "build-storybook": "storybook build",
-    "unimported": "npx unimported",
+    "knip": "knip",
     "test": "vitest",
     "test:no-watch": "vitest --no-watch"
   },
@@ -136,6 +136,7 @@
     "eslint": "^8.56.0",
     "eslint-plugin-i18next": "^6.0.3",
     "eslint-plugin-path": "^1.2.4",
+    "knip": "^5.0.2",
     "madge": "^6.1.0",
     "openapi-types": "^12.1.3",
     "openapi-typescript": "^6.7.4",