Fix typos in documentation: `than/then` and `loose/lose` #12651

Job	Run time
📊 Static checks / Code style, file formatting, and docs	39s
🍏 iOS / Template (target=template_release)	5m 55s
🏁 Windows / Editor (target=editor, tests=yes)	14m 54s
🐧 Linux / Editor w/ Mono (target=editor)	5m 37s
🏁 Windows / Template (target=template_release)	8m 34s
🌐 Web / Template (target=template_release)	1m 19s
🐧 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)	17m 22s
🤖 Android / Template (target=template_release)	4m 13s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	9m 35s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	9m 23s
🍎 macOS / Editor (target=editor, tests=yes)	5m 10s
🐧 Linux / Template w/ Mono (target=template_release)	1m 26s
🍎 macOS / Template (target=template_release)	3m 45s
🐧 Linux / Minimal template (target=template_release, everything disabled)	1m 0s
🪲 Godot CPP / Build and test Godot CPP	11m 38s
	1h 40m 30s

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