Replace uhttpd with nginx:alpine

[tomjones1977]

Fixes #181

Path updated to reflect the default folder in the nginx build.

[TEX479]

tried it and it worked (well the "View Raw" feature seems to be broken, but idk if that's related to this PR)

[MoqiLintong]

tried it and it worked (well the "View Raw" feature seems to be broken, but idk if that's related to this PR)

As suggested in the README.md, the "View Raw" function relies on netlify. I've tried to implement this in Docker with netlify, and here is my solution.

build with netlify

FROM node:22-slim

# 安装 netlify cli
RUN npm config set registry https://registry.npmmirror.com/ \
    && npm install -g netlify-cli \
    && netlify version

# 创建工作目录
WORKDIR /usr/src/app

# 将项目文件打包进镜像
ADD . .

# 暴露应用端口
EXPOSE 8888

CMD ["netlify", "dev", "--context", "production"]