Fix CS errors.

app/admin.php

@@ -23,7 +23,7 @@ add_action('customize_register', function (\WP_Customize_Manager $wp_customize)
         'transport' => 'postMessage'
     ]);
     $wp_customize->add_control('pb_network_facebook', [
-        'label' => __('Facebook URL','aldine'),
+        'label' => __('Facebook', 'aldine'),
         'section'  => 'pb_network_social',
         'settings' => 'pb_network_facebook',
     ]);
@@ -32,7 +32,7 @@ add_action('customize_register', function (\WP_Customize_Manager $wp_customize)
         'transport' => 'postMessage'
     ]);
     $wp_customize->add_control('pb_network_linkedin', [
-        'label' => __('LinkedIn URL','aldine'),
+        'label' => __('LinkedIn', 'aldine'),
         'section'  => 'pb_network_social',
         'settings' => 'pb_network_linkedin',
     ]);
@@ -41,7 +41,7 @@ add_action('customize_register', function (\WP_Customize_Manager $wp_customize)
         'transport' => 'postMessage'
     ]);
     $wp_customize->add_control('pb_network_twitter', [
-        'label' => __('Twitter URL','aldine'),
+        'label' => __('Twitter', 'aldine'),
         'section'  => 'pb_network_social',
         'settings' => 'pb_network_twitter',
     ]);