Rename 'Nitpicker' namespace to 'Gui'

Issue genodelabs/genode#3778

recipes/pkg/chocolate-doom/README

@@ -1,5 +1,5 @@
 Chocolate-doom is a Doom1/2 engine source port that tries to
-stay true to the original DOS versions. 
+stay true to the original DOS versions.
 
 This pkg is configured for playing the Doom 1 shareware version. It can
 also be used to play the Heretic 1 shareware as well as the Hexen 1 demo
@@ -7,4 +7,4 @@ by changing the 'init.config' file. Replace all occurences of 'doom' to
 either 'heretic' or 'hexen' (the Hexen 1 demo file has to be called
 'hexen.wad', there is no '1' in the name).
 
-The pkg requires Nic and Nitpicker services, Audio_out is optional.
+The pkg requires Nic and Gui services, Audio_out is optional.

recipes/pkg/ssh_client/README

@@ -1,7 +1,7 @@
 
-	SSH terminal client
+   SSH terminal client
 
-A Nitpicker terminal that connects to a shell on a remote SSH server.
+A GUI terminal that connects to a shell on a remote SSH server.
 
 It is configured with a "host" file found in its root directory with the
 following format:

recipes/pkg/terminal_editor/archives

@@ -11,7 +11,7 @@ _/src/qt5_core
 _/src/qt5_gui
 _/src/qt5_printsupport
 _/src/qt5_qjpeg
-_/src/qt5_qpa_nitpicker
+_/src/qt5_qpa_genode
 _/src/qt5_widgets
 _/src/stdcxx
 _/src/vfs

recipes/pkg/terminal_editor/runtime

@@ -24,7 +24,7 @@
 		<rom label="qt5_dejavusans.tar"/>
 		<rom label="qt5_gui.lib.so"/>
 		<rom label="qt5_qjpeg.lib.so"/>
-		<rom label="qt5_qpa_nitpicker.lib.so"/>
+		<rom label="qt5_qpa_genode.lib.so"/>
 		<rom label="stdcxx.lib.so"/>
 		<rom label="vfs.lib.so"/>
 		<rom label="zlib.lib.so"/>

recipes/src/io_editor/used_apis

@@ -6,6 +6,6 @@ qt5_core
 qt5_gui
 qt5_printsupport
 qt5_qjpeg
-qt5_qpa_nitpicker
+qt5_qpa_genode
 qt5_widgets
 stdcxx

recipes/src/qt5_avplay/used_apis

@@ -9,9 +9,9 @@ os
 qoost
 qt5_core
 qt5_gui
-qt5_qpa_nitpicker
+qt5_qpa_genode
 qt5_qjpeg
-qt5_qnitpickerviewwidget
+qt5_qgenodeviewwidget
 qt5_widgets
 qt5_xml
 stdcxx