Fix/journal

[SalwaMugh]

Finale style including

• [x] add entry section
• [x] delete button style
• [x] check goal input style

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Functionality:

• [x] add loading model when calling an api.
• [x] add sweet alert when delete.
• [x] empty the add entry when adding new goal.
• [x] add a back-end validation to the add.
• [x] in the update add complete goal date.
• [x] the date (write in the db)
• [x] the date (read in readable form)
• [x] hide and show sections
• [x] sort goals from most recent

relate to #137 #120 #121 #119 ref: For checkbox style. https://www.w3schools.com/howto/howto_css_custom_checkbox.asp https://stackoverflow.com/questions/41007060/target-another-styled-component-on-hover