Finalize the Effect View rename and refresh docs, examples, and tooling (#59)

## Summary

- Rename `effect-fc-next` to `effect-view` and update package metadata, internal symbols, imports, and repository references.
- Promote the Effect 4 example to `packages/example` and move the legacy Effect 3 example to `packages/effect-fc-example`.
- Add `effect-view` to the npm publishing workflow.
- Update the Vite Fast Refresh plugin for `effect-view` and rename `effectViewPlugin()` to `effectView()`.
- Upgrade Effect, React, TypeScript, build tooling, and related dependencies.
- Refresh the documentation and homepage.

## Documentation

- Add a dedicated Async guide covering:
  - Suspense fallbacks
  - Hook ordering
  - Memoization
  - Structural prop equality
- Clarify synchronous and asynchronous component behavior.
- Document runner scope and service requirements.
- Explain stable construction of Query, Mutation, and Form instances.
- Expand focused Lens and Form examples, including curried focus helpers.
- Document the optional `@effect/platform-browser` dependency for window-focus query refresh.
- Improve the Forms guide structure and examples.
- Fix responsive homepage headline wrapping and update homepage copy.

## Notable API changes

- Package rename:

  ```diff
  - effect-fc-next
  + effect-view

---------

Co-authored-by: Julien Valverdé <julien.valverde@mailo.com>
Reviewed-on: #59

packages/example/package.json

@@ -1,9 +1,10 @@
 {
-  "name": "@effect-fc/example",
+  "name": "@effect-view/example",
   "version": "0.0.0",
   "type": "module",
   "private": true,
   "scripts": {
+    "build": "tsc -b && vite build",
     "dev": "vite",
     "lint:tsc": "tsc -b --noEmit",
     "lint:biome": "biome lint",
@@ -13,6 +14,7 @@
     "clean:modules": "rm -rf node_modules"
   },
   "devDependencies": {
+    "@effect-view/vite-plugin": "workspace:*",
     "@tanstack/react-router": "^1.170.10",
     "@tanstack/react-router-devtools": "^1.167.0",
     "@tanstack/router-plugin": "^1.168.13",
@@ -22,21 +24,18 @@
     "globals": "^17.6.0",
     "react": "^19.2.6",
     "react-dom": "^19.2.6",
-    "type-fest": "^5.7.0",
     "vite": "^8.0.16"
   },
   "dependencies": {
-    "@effect/platform": "^0.96.1",
-    "@effect/platform-browser": "^0.76.0",
+    "@effect/platform-browser": "4.0.0-beta.101",
     "@radix-ui/themes": "^3.3.0",
-    "@typed/id": "^0.17.2",
-    "effect": "^3.21.2",
-    "effect-fc": "workspace:*",
+    "effect": "4.0.0-beta.101",
+    "effect-view": "workspace:*",
     "react-icons": "^5.6.0"
   },
   "overrides": {
     "@types/react": "^19.2.15",
-    "effect": "^3.21.2",
+    "effect": "4.0.0-beta.101",
     "react": "^19.2.6"
   }
 }