Tasks for home page

[moritz-baumgart]

• Add function to post button, new popup with create a post view
• Header text label "Home"
• Maybe: Button for filepicker and filepicker
• Add icons for up/downvotes, comments,

[laurenrzv]

home label and icon for up/downvote,comments added

[laurenrzv]

Post Button shows a pop up. Popup has an entry for Text and Button to close, which function needs to be changed to post