Tabs label CSS dark mode fix (#4367)

* Tabs label CSS night mode fix

* Update _static/custom.css

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* removed border attribute

* Update custom.css

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

_static/custom.css

@@ -282,6 +282,10 @@ div.body p, div.body dd, div.body li, div.body blockquote {
     display: none;
 }
 
+.sphinx-tabs-tab {
+  line-height: 20px;
+}
+
 /* New branding changes */
 
 div.body h1, div.body h2, div.body h3, div.body h4, div.body h5, div.body h6, div.sphinxsidebar h3, div.sphinxsidebar h4, div.admonition p.admonition-title {
@@ -365,6 +369,7 @@ img.logo {
   }
 
   .sphinx-tabs-tab {
+    color: #3fc3ff !important;
     background: #212121 !important;
     margin: 0 !important;
   }