Reorganize folder structure and add necessary dependencies

 * AWS S3 client
 * Bootstrap
 * Bootstrap icons
 * OpenAPI code generator

Dockerfile

@@ -5,7 +5,7 @@ WORKDIR /app
 COPY package.json ./
 COPY package-lock.json ./
 RUN npm install
-COPY . .
+COPY ProxyAPI-UI .
 RUN npm run build
 
 # production stage

src/assets/main.css → ProxyAPI-UI/src/assets/main.css

-@import "./base.css";
+@import "base.css";
 
 #app {
   max-width: 1280px;