💄 Add logo for light and dark modes and update header settings

- Uploaded site logo files for both light (square-logo.png) and dark (square-logo-dark.png) modes.
- Updated header configuration: set logo paths and disabled site title in header.
- Implemented workaround for bug in theme: swapped light and dark logos to render correctly.

config/_default/params.toml

@@ -20,9 +20,9 @@ fingerprintAlgorithm = "sha256"
 
 [header]
   layout = "hybrid" # valid options: basic, hamburger, hybrid, custom
-  # logo = "img/logo.jpg"
-  # logoDark = "img/dark-logo.jpg"
-  showTitle = true
+  logo = "img/square-logo-dark.png" # Bug: theme improperly handling logo versions of light/dark
+  logoDark = "img/square-logo.png" # Dark mode logo swapped for rendering bug workaround
+  showTitle = false # Disable title as logo is now displayed
 
 [footer]
   showCopyright = true