DPL GUI: Functionality to zoom topology + Export to SVG

[sawenzel]

Code provided by OpenAI Codex

[ktf]

@vkucera do you understand the broken builds?

[alibuild]

Error while checking build/O2/fullCI_slc9 for 6664d17 at 2026-06-02 15:19:

## sw/BUILD/o2checkcode-latest/log
--
========== List of errors found ==========
++ GRERR=0
++ grep -v clang-diagnostic-error error-log.txt
++ grep ' error:'
/sw/SOURCES/O2/slc9_x86-64-slc9_x86-64/0/Framework/GUISupport/src/FrameworkGUIDevicesGraph.cxx:384:10: error: escaped string literal can be written as a raw string literal [modernize-raw-string-literal]
/sw/SOURCES/O2/slc9_x86-64-slc9_x86-64/0/Framework/GUISupport/src/FrameworkGUIDevicesGraph.cxx:391:10: error: escaped string literal can be written as a raw string literal [modernize-raw-string-literal]
/sw/SOURCES/O2/slc9_x86-64-slc9_x86-64/0/Framework/GUISupport/src/FrameworkGUIDevicesGraph.cxx:416:45: error: escaped string literal can be written as a raw string literal [modernize-raw-string-literal]
/sw/SOURCES/O2/slc9_x86-64-slc9_x86-64/0/Framework/GUISupport/src/FrameworkGUIDevicesGraph.cxx:419:12: error: escaped string literal can be written as a raw string literal [modernize-raw-string-literal]
/sw/SOURCES/O2/slc9_x86-64-slc9_x86-64/0/Framework/GUISupport/src/FrameworkGUIDevicesGraph.cxx:459:12: error: escaped string literal can be written as a raw string literal [modernize-raw-string-literal]
++ [[ 0 == 0 ]]
++ exit 1
--

Full log here.