feat: add k shortcut key to focus search

_config.yml

@@ -50,6 +50,7 @@ search:
   # Enable or disable the search button that appears in the bottom right corner of every page
   # Supports true or false (default)
   button: true
+  focus_shortcut_key: 'k'
 
 # To disable support for mermaid diagrams (https://mermaid-js.github.io/mermaid/),
 # comment out the `mermaid` and `version` keys below
@@ -88,7 +89,7 @@ nav_external_links:
 back_to_top: true
 back_to_top_text: "Back to top"
 
-footer_content: "Copyright &copy; 2023 Natalie Agus.</a>"
+footer_content: "Copyright &copy; 2025 Natalie Agus.</a>"
 
 # Footer last edited timestamp
 last_edit_timestamp: true # show or hide edit time - page must have `last_modified_date` defined in the frontmatter