add kapa and ensure accessibility (#957)

* add ask ai by kapa

* Ensure accessibility

* Ensure accessibility

* change style

Author: CritasWang

src/.vuepress/config.ts

@@ -93,6 +93,10 @@ _paq.push(['enableLinkTracking']);
         // 'data-language': 'zh',
         'data-project-name': 'Apache IoTDB',
         'data-project-color': '#9E2878',
+        'data-button-image-height': '0px',
+        'data-button-image-width': '0px',
+        // 'data-button-bg-color': '#FFF',
+        // 'data-button-text-color': '#9E2878',
         'data-project-logo': 'https://iotdb.apache.org/slogo.png',
         'data-button-position-right': '16px',
         'data-button-position-bottom': '120px',

src/.vuepress/public/.htaccess

@@ -6,4 +6,4 @@ RewriteRule . /404.html [L]
 
 ErrorDocument 404 /404.html
 
-Header set Content-Security-Policy "default-src data: blob: 'self' *.apache.org *.githubusercontent.com *.github.com *.algolia.net *.algolianet.com *.kapa.ai *.apachecon.com *.communityovercode.org 'unsafe-inline' 'unsafe-eval'; frame-src 'self' data: blob:; frame-ancestors 'self'; worker-src 'self' data: blob:; img-src 'self' blob: data: https: *.apache.org www.apachecon.com; style-src 'self' 'unsafe-inline' data:;"
+Header set Content-Security-Policy "default-src data: blob: 'self' *.apache.org *.githubusercontent.com *.github.com *.algolia.net *.algolianet.com *.kapa.ai www.google.com *.apachecon.com *.communityovercode.org 'unsafe-inline' 'unsafe-eval'; frame-src 'self' data: blob:; frame-ancestors 'self'; worker-src 'self' data: blob:; img-src 'self' blob: data: https: *.apache.org www.apachecon.com; style-src 'self' 'unsafe-inline' data:;"