PixelPaint: Update text tool font color on primary color change

Author: https://github.com/tcl3
Commit: d4cb089acb
Pull-request: https://github.com/SerenityOS/serenity/pull/17247

Userland/Applications/PixelPaint/Tools/TextTool.cpp

@@ -41,6 +41,13 @@ TextTool::TextTool()
     }).release_value_but_fixme_should_propagate_errors();
 }
 
+void TextTool::on_tool_activation()
+{
+    m_editor->on_primary_color_change = [this](auto color) {
+        m_text_color = color;
+    };
+}
+
 void TextTool::on_tool_deactivation()
 {
     reset_tool();