Fixed changes of fetching response. Added a loading button to modal

webstillas/src/components/Signup.js

...illas/src/components/logistics/scaffold/addScaffolding.js

webstillas/src/components/mapPage/mapPage.js

webstillas/src/components/projects/elements/Modal.js

webstillas/src/components/projects/elements/preView.js

webstillas/src/components/projects/projects.js

...s/src/components/scaffolding/elements/ModalScaffolding.js

webstillas/src/components/scaffolding/scaffolding.js

webstillas/src/components/topBar/topBar.js

webstillas/src/components/userinformation/userInfo.js

webstillas/src/modelData/fetchData.js

webstillas/src/modelData/postModel.js