feat: Allow no template_config, enabling you to use litestar-vite with html frameworks other than Jinja2

[cj]

Description

Allowing no template_config enables you to use litestar-vite with html frameworks other than Jinja2.

main.py

from typing import Any

from litestar import Litestar, MediaType, Request, Response, get
from litestar_vite import ViteConfig, VitePlugin
from weba import ui

from app import env
from app.components.layout import Layout

plugins: list[Any] = [
    VitePlugin(
        config=ViteConfig(
            hot_reload=env.debug,
            use_server_lifespan=env.debug,
            dev_mode=env.debug,
            port=env.vite_port,
        ),
    )
]


@get("/")
async def index(request: Request[Any, Any, Any]) -> Response[str]:
    async with Layout(request) as html:
        with html.main:
            ui.h1("Hello, World!")

    return Response(
        content=str(html),
        media_type=MediaType.HTML,
        status_code=200,
    )


app = Litestar(
    [index],
    openapi_config=None,
    plugins=plugins,
    debug=env.debug,
)

layout.py

from typing import Any

from litestar import Request
from litestar_vite.loader import render_asset_tag, render_hmr_client
from weba import Component, Tag, tag, ui

from app import env


class Layout(Component):
    html = "./layout.html"

    def __init__(self, request: Request[Any, Any, Any], title: str | None = None):
        self.title = f" | {title}" if title else ""
        self.context = {"request": request}

    @tag("title")
    def title_tag(self, t: Tag):
        t.string = self.title

    @tag("body")
    def body(self):
        pass

    @tag("body > main")
    def main(self):
        pass

    @tag("body > header")
    def header(self):
        pass

    @tag("body > footer")
    def footer(self):
        pass

    async def render(self):
        self._append_hmr()
        self._append_assets()

    def _append_hmr(self):
        if not env.debug:
            return

        self.body.append(ui.raw(render_hmr_client(self.context)))
        self.body.append(
            ui.script(
                src="/__reload__/static/reload-listener.js",
                data_worker_script_path="/__reload__/static/reload-worker.js",
                data_ws_path="/__reload__",
                defer=True,
                async_=True,
            )
        )

    def _append_assets(self):
        self.body.append(ui.raw(render_asset_tag(self.context, path=["app/scripts/main.js", "app/styles/main.css"])))

[cofin]

LGTM