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/effect-fc-example/src/routes/dev/context.tsx

@@ -0,0 +1,42 @@
+import { Container, Flex, Text, TextField } from "@radix-ui/themes"
+import { createFileRoute } from "@tanstack/react-router"
+import { Console, Effect } from "effect"
+import { Component } from "effect-fc"
+import * as React from "react"
+import { runtime } from "@/runtime"
+
+
+class SubService extends Effect.Service<SubService>()("SubService", {
+    effect: (value: string) => Effect.succeed({ value })
+}) {}
+
+const SubComponent = Component.makeUntraced("SubComponent")(function*() {
+    const service = yield* SubService
+    yield* Component.useOnMount(() => Effect.gen(function*() {
+        yield* Effect.addFinalizer(() => Console.log("SubComponent unmounted"))
+        yield* Console.log("SubComponent mounted")
+    }))
+
+    return <Text>{service.value}</Text>
+})
+
+const ContextView = Component.makeUntraced("ContextView")(function*() {
+    const [serviceValue, setServiceValue] = React.useState("test")
+    const SubServiceLayer = React.useMemo(() => SubService.Default(serviceValue), [serviceValue])
+    const SubComponentFC = yield* Effect.provide(SubComponent.use, yield* Component.useLayer(SubServiceLayer))
+
+    return (
+        <Container>
+            <Flex direction="column" align="center">
+                <TextField.Root value={serviceValue} onChange={e => setServiceValue(e.target.value)} />
+                <SubComponentFC />
+            </Flex>
+        </Container>
+    )
+}).pipe(
+    Component.withRuntime(runtime.context)
+)
+
+export const Route = createFileRoute("/dev/context")({
+    component: ContextView
+})