implemented switch for activating semantics for each project (false by default)

src/const.ts

src/features/soil-editor/SoilTextEditor/SoilHighlight.ts

src/features/soil-editor/SoilToolbar/SemanticSwitch.tsx

src/features/soil-editor/SoilToolbar/SoilToolbar.tsx

src/features/soil-editor/soileditorSlice.ts