STORM-276 Match preferences look to that of the auto-replace functionality in STORM-1738

indra/newview/CMakeLists.txt

indra/newview/llfloaterpreference.cpp

indra/newview/llfloaterpreference.h

indra/newview/llfloaterspellchecksettings.cpp

indra/newview/llfloaterspellchecksettings.h

indra/newview/llviewerfloaterreg.cpp

indra/newview/skins/default/xui/en/floater_preferences.xml

indra/newview/skins/default/xui/en/floater_spellcheck.xml

...a/newview/skins/default/xui/en/panel_preferences_chat.xml

...iew/skins/default/xui/en/panel_preferences_spellcheck.xml