Globally change "Expend" to "Expand"
- In src/contents/ui/sharedComponents rename ExpendingFormSwitch.qml to ExpandingFormSwitch.qml
- Replace "Expend" by "Expand" in files: src/resources.qrc, src/contents/ui/dialogs/LinkNoteDialog.qml, src/contents/ui/dialogs/tableMakerDialog/TableMakerDialog.qml, src/contents/ui/settings/{PluginsTab,GeneralTab}.qml
- In src/contents/ui/settings/PluginsTab.qml ExpandingFormSwitch fix typo in PlantUML description.