feat: update source files, Dockerfile, vite config and service worker

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20 as builder
+FROM node:20 AS builder
 WORKDIR /app
 COPY package*.json ./
 # TODO: Remove this or review embedded variables
@@ -20,19 +20,24 @@ RUN echo 'server { \
     root /usr/share/nginx/html; \
     index index.html; \
     location / { \
-        try_files $uri $uri/ /index.html; \
-        expires 30d; \
-        add_header Cache-Control "public, no-transform"; \
+    try_files $uri $uri/ /index.html; \
+    expires 30d; \
+    add_header Cache-Control "public, no-transform"; \
     } \
     location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff2?)$ { \
-        expires 30d; \
-        add_header Cache-Control "public, no-transform"; \
+    expires 30d; \
+    add_header Cache-Control "public, no-transform"; \
+    } \
+    location /searxng-api/ { \
+    proxy_pass https://search.kevlarai.com/; \
+    proxy_ssl_server_name on; \
+    proxy_set_header Host search.kevlarai.com; \
     } \
     location ~ /\. { \
-        deny all; \
+    deny all; \
     } \
     error_page 404 /index.html; \
-}' > /etc/nginx/conf.d/default.conf
+    }' > /etc/nginx/conf.d/default.conf
 
 # Set up permissions
 RUN chown -R nginx:nginx /usr/share/nginx/html \