docs(storybook): update Vue and Angular docs

[acstll]

• update Vue and Angular docs
• add proxy-package deprecation warning in README
• make sure translations are good
• update example apps in examples/ folder

[Lalaluka]

Hey,
It's a nice improvement for vue3.
But it only handles basic setups with Webpack and doesn't have a solution for vue-cli which uses vue.config.js files.
For our Project using single-spa-vue a vue.config.js file would be preferred since we would dislike using an additional webpack file.

[acstll]

Hey, we can surely add the vue.config.js version of this, which is actually what we're using in the updated Vue3 example.

// vue.config.js
  chainWebpack: config => {
    config.module
      .rule('vue')
      .use('vue-loader')
        .tap(options => {
          // https://v3.vuejs.org/guide/migration/custom-elements-interop.html#autonomous-custom-elements
          options.compilerOptions = {
            isCustomElement: (tag) => tag.startsWith('scale-')
          }
          return options
        })
  }

This is what you're referring to, right?

https://github.com/telekom/scale/blob/bd37956abfa678791073b1ebbf08937908e6502f/examples/vue3-boilerplate/vue.config.js

[Lalaluka]

Jup exactly 👍

[acstll]

amazing, will update

[acstll]

#500 👀