When we have only one item in the Cost Explorer graph or multiple items with the name of the same length, then the graph tooltip is incorrectly formatted - there is no space between a given item and the cost value (see graph_tooltip_project.png, graph_tooltip_region.png). Applies to all perspectives and group-bys, with the exception of items with shortened names.

Steps to reproduce:

stage env, cost-demo account

1. go to Cost Explorer page
2. select "All Openshift" perspective
3. Filter by: Project: sunshine
4. place the cursor over the graph -> you will see that there is no space between project and cost value (see graph_tooltip_project.png).
5. select "Amazon Web Services" perspective
6. Group-by: Region
7. Filter by: Region: us-west
8. place the cursor over the graph -> you will see that there is no space between one of the region and its cost value (see graph_tooltip_region.png).
9.