FS: Mention Dialog

[aeciorc]

• On the dashboard, we want the MentionComponent to have a summary of the whole content of the mention (if possible, summary should include the company). We also want it to be clickable, which should pop a dialog open containing the entire content of the mention, as well as a link the the original post. Besides that, we also the dialogs to have an individual URL. If the dialog is opened and the mention is not in the context, fetch it, else use the ones that is already there.