Renamed property to eliminate "zend" from code.

- Preparing for Laminas migration.

module/VuFind/src/VuFind/RecordTab/TabManager.php

@@ -79,11 +79,12 @@ class TabManager
     protected $pluginManager;
 
     /**
-     * Overall framework configuration
+     * Overall framework configuration (used for fetching configurations "the old
+     * way" -- can eventually be deprecated).
      *
      * @var array
      */
-    protected $zendConfig;
+    protected $legacyConfig;
 
     /**
      * Current active context (defaults to 'record')
@@ -95,16 +96,17 @@ class TabManager
     /**
      * Constructor
      *
-     * @param PluginManager $pm         RecordTab plugin manager
-     * @param ConfigManager $cm         Configuration plugin manager
-     * @param array         $zendConfig Zend Framework configuration
+     * @param PluginManager $pm           RecordTab plugin manager
+     * @param ConfigManager $cm           Configuration plugin manager
+     * @param array         $legacyConfig Overall framework configuration (only
+     * used for legacy config loading; optional)
      */
     public function __construct(PluginManager $pm, ConfigManager $cm,
-        $zendConfig = []
+        $legacyConfig = []
     ) {
         $this->pluginManager = $pm;
         $this->configManager = $cm;
-        $this->zendConfig = $zendConfig;
+        $this->legacyConfig = $legacyConfig;
 
         // Initialize default context.
         $this->initializeCurrentContext();
@@ -137,7 +139,7 @@ class TabManager
         if (!isset($this->config[$this->context])) {
             $key = $this->contextSettings[$this->context]['legacyConfigSection']
                 ?? 'recorddriver_tabs';
-            $legacyConfig = $this->zendConfig['vufind'][$key] ?? [];
+            $legacyConfig = $this->legacyConfig['vufind'][$key] ?? [];
             $iniConfig = $this->configManager->get(
                 $this->contextSettings[$this->context]['configFile']
             )->toArray();