ISTWCMS-7266: Refactor link handling logic in UwCblLinks block.

Replaced redundant base path handling with streamlined logic for link cleaning and title overrides. Introduced new parameters to cleanUpLink() for better flexibility and removed unused prepareLink() method. This improves code readability while maintaining functionality.

src/Plugin/Block/UwCblLinks.php

@@ -776,7 +776,7 @@ class UwCblLinks extends BlockBase implements ContainerFactoryPluginInterface {
             $links['items'][$count][$key] = NULL;
           }
           elseif ($key === 'uri') {
-            $links['items'][$count][$key] = $this->cleanUpLink($item['link_info'][$key], prefix_base_path: TRUE);
+            $links['items'][$count][$key] = $this->cleanUpLink($item['link_info'][$key]);
           }
           else {
             $links['items'][$count][$key] = $item['link_info'][$key];
@@ -1073,7 +1073,7 @@ class UwCblLinks extends BlockBase implements ContainerFactoryPluginInterface {
     $link = $url;
 
     // Remove base path, this will be used to validate url.
-    if ($base_path && str_starts_with(strtolower($link), $base_path)) {
+    if ($base_path && str_starts_with(strtolower($link), $base_path . '/')) {
       $link = substr_replace($link, '', 0, strlen($base_path));
     }