Add heading separator to utility table output

[jpvelez]

What

Currently, when the user gets to Select a utility step, the output looks like this:

 » Utility Name                                 | Entity Type        | Sales (MWh)  | Revenue ($) | Customers
   Central Hudson Gas & Elec Corp               | Investor Owned     |    2,167,787 | 787,803,968 |   270,859
   Consolidated Edison Co-NY Inc                | Investor Owned     |   13,643,968 | 10,723,692,544 | 3,064,038
   FirstEnergy Pennsylvania Electric Co         | Investor Owned     |       30,556 |   8,235,400 |     3,400

The » is set to the column name row, and there's no visual differentiation between that row and subsequent rows.

If possible, we should make the output look like this:

   Utility Name                                 | Entity Type        | Sales (MWh)  | Revenue ($) | Customers
   ------------------------------------------------------------------------------------------------ 
 » Central Hudson Gas & Elec Corp               | Investor Owned     |    2,167,787 | 787,803,968 |   270,859
   Consolidated Edison Co-NY Inc                | Investor Owned     |   13,643,968 | 10,723,692,544 | 3,064,038
   FirstEnergy Pennsylvania Electric Co         | Investor Owned     |       30,556 |   8,235,400 |     3,400

Why

• So the user doesn't select the column name row
• So the user doesn't get confused about what's going on

Deliverables

• Fix merged to main

[linear]

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