fix(qt): patch qt to make placeholders differ from actual text

Using a part of this patch https://bugreports.qt.io/browse/QTBUG-92199?focusedId=669719&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-669719

depends/packages/qt.mk

@@ -11,6 +11,7 @@ $(package)_patches = qt.pro
 $(package)_patches += qttools_src.pro
 $(package)_patches += mac-qmake.conf
 $(package)_patches += fix_qt_pkgconfig.patch
+$(package)_patches += fix_qt_placeholders.patch
 $(package)_patches += no-xlib.patch
 $(package)_patches += dont_hardcode_x86_64.patch
 $(package)_patches += fix_montery_include.patch
@@ -245,6 +246,7 @@ define $(package)_preprocess_cmds
   cp $($(package)_patch_dir)/qttools_src.pro qttools/src/src.pro && \
   patch -p1 -i $($(package)_patch_dir)/dont_hardcode_pwd.patch && \
   patch -p1 -i $($(package)_patch_dir)/fix_qt_pkgconfig.patch && \
+  patch -p1 -i $($(package)_patch_dir)/fix_qt_placeholders.patch && \
   patch -p1 -i $($(package)_patch_dir)/fix_android_jni_static.patch && \
   patch -p1 -i $($(package)_patch_dir)/no-xlib.patch && \
   patch -p1 -i $($(package)_patch_dir)/dont_hardcode_x86_64.patch && \

depends/patches/qt/fix_qt_placeholders.patch

@@ -0,0 +1,10 @@
+--- old/qtbase/src/widgets/styles/qstylesheetstyle.cpp
++++ new/qtbase/src/widgets/styles/qstylesheetstyle.cpp
+@@ -1465,7 +1465,6 @@ void QRenderRule::configurePalette(QPalette *p, QPalette::ColorGroup cg, const Q
+         p->setBrush(cg, w->foregroundRole(), pal->foreground);
+         p->setBrush(cg, QPalette::WindowText, pal->foreground);
+         p->setBrush(cg, QPalette::Text, pal->foreground);
+-        p->setBrush(cg, QPalette::PlaceholderText, pal->foreground);
+     }
+     if (pal->selectionBackground.style() != Qt::NoBrush)
+         p->setBrush(cg, QPalette::Highlight, pal->selectionBackground);