feat: apply suggestions from Revathy's review

Co-authored-by: Revathy Venugopal <[email protected]>

Author: moe-ad

doc/source/conf.py

@@ -399,7 +399,7 @@ def reset_servers(gallery_conf, fname, when):
 
 # Optionally exclude api or example documentation generation.
 BUILD_API = True if os.environ.get("BUILD_API", "true") == "true" else False
-if not BUILD_API:
+if BUILD_API:
     extensions.extend("ansys_sphinx_theme.extension.autoapi")
 
 BUILD_EXAMPLES = True if os.environ.get("BUILD_EXAMPLES", "true") == "true" else False