Fix caret last fit when moving to line end #27256

Job	Run time
📊 Static checks / Code style, file formatting, and docs	4m 40s
🤖 Android / Template (target=template_release)	4m 24s
🐧 Linux / Editor w/ Mono (target=editor)	6m 43s
🍎 macOS / Editor (target=editor, tests=yes)	8m 0s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	18m 35s
🍏 iOS / Template (target=template_release)	4m 10s
🍎 macOS / Template (target=template_release)	4m 24s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	7m 13s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	4m 35s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	8m 7s
🌐 Web / Template w/o threads (target=template_release, threads=no)	4m 27s
🐧 Linux / Template w/ Mono (target=template_release)	2m 53s
🏁 Windows / Editor (target=editor, tests=yes)	9m 42s
🐧 Linux / Minimal template (target=template_release, everything disabled)	2m 3s
🏁 Windows / Template (target=template_release)	8m 39s
🪲 Godot CPP / Build and test Godot CPP	7m 16s
	1h 45m 51s

Provide feedback