New Glyph Request: Half block with inner rounded corners

[rockorager]

Requirements

• I have searched the issues for my request and found nothing related and/or helpful
• I have searched the FAQ for help
• I have searched the Wiki for help

Is your feature request related to a problem? Please describe.
I want to make nice looking "buttons" in a TUI. I can make nice "pills" using U+E0B6 and U+E0B4 by sandwiching some text with those. It would be nice to have something that resembled a more "modern" look than a "pill".

Describe the solution you'd like
U+2590 RIGHT HALF BLOCK with rounded inner corners (and the mirror image for the left half block). With glyphs like these, once could sandwich text and get a nicer looking "button", and also not have to add a space between successive buttons to account for whitespace. Think firefox tabs.

Describe alternatives you've considered
As mentioned above, the "pill".

Additional context
Here's a concept (done with janky css):

[Finii]

Closing because transferred to #1095

[qwerasd205]

If this is considered, a third glyph that gives the appearance of two rounded blocks butting up against one another would also be good to have. Basically meaning you'd have these 3 glyphs:

Right half rounded rectangular cap
----
  ╭┐
  ││
  ╰┘
----
Left half rounded rectangular cap
----
┌╮  
││  
└╯  
----
Left and right half back-to-back rounded rectangular caps
----
┌╮╭┐
││││
└╯╰┘
----

Allowing for something like this:

----__---__----__---__----
  ╭┐       ┌╮╭┐       ┌╮  
  ││ F o o ││││ B a r ││  
  ╰┘       └╯╰┘       └╯  
----__---__----__---__----

EDIT, for those whose browsers don't like box drawing chars: