use linked page_number arguments

src/app/browser/main/tab.cpp

@@ -31,7 +31,7 @@ Tab::~Tab() = default;
 
 // Getters
 Glib::ustring Tab::get_label_text(
-    int page_number
+    const int & page_number
 ) {
     auto pageWidget = get_nth_page(
         page_number
@@ -75,7 +75,7 @@ void Tab::append(
 };
 
 void Tab::close(
-    int page_number
+    const int & page_number
 ) {
     remove_page(
         page_number
@@ -102,7 +102,7 @@ void Tab::close_all()
 }
 
 void Tab::update(
-    int page_number
+    const int & page_number
 ) {
     auto pageWidget = get_nth_page(
         page_number
@@ -118,7 +118,7 @@ void Tab::update(
 } // @TODO
 
 void Tab::refresh(
-    int page_number
+    const int & page_number
 ) {
     auto pageWidget = get_nth_page(
         page_number

src/app/browser/main/tab.hpp

@@ -19,7 +19,7 @@ namespace app::browser::main
             ~Tab();
 
             Glib::ustring get_label_text(
-                int page_number
+                const int & page_number
             );
 
             void append(
@@ -28,7 +28,7 @@ namespace app::browser::main
             );
 
             void close(
-                int page_number
+                const int & page_number
             );
 
             void close_left();
@@ -36,11 +36,11 @@ namespace app::browser::main
             void close_all();
 
             void refresh(
-                int page_number
+                const int & page_number
             );
 
             void update(
-                int page_number
+                const int & page_number
             );
     };
 }