Aqeel's feedback on availabilities

[2-towns]

• [X] Reduce the opacity of the availability bars (0.5)
• [X] Remove the legend
• [X] Add an optional nickname field when creating availability.
• [X] Display a tooltip that includes the ID, Name, and Size.
• [X] Add a color circle to the ID beside it
• [ ] Clicking on a bar will scroll to the corresponding row in the table
• [X] Highlight the row when the mouse hovers over the node space allocation bar component
• [X] When the user has more than 5 or 6 availabilities, create a 'chunk' to group the remaining availabilities into a single node space allocation bar component.
• [X] Add a 'Max' button beside the unit select, to utilize the full remaining space for creating an availability.