refactor: Update reset button text to "Reset page"

mapper/src/App.js

@@ -505,7 +505,7 @@ function Menu({duration, setDuration, end, setEnd, slider, setSlider, submenu, s
 							</label>
 							<button onClick={recentreView}>Recentre view</button>
 							<button onClick={shareRange}>Share range</button>
-							<button onClick={resetToDefaults}>Reset to defaults</button>
+							<button onClick={resetToDefaults}>Reset page</button>
 						</>
 					}
 				</div>