feat: updated tertiary button styles

[LuLaValva]

Fixes #1754

• [x] This PR contains CSS changes
• [ ] This PR does not contain CSS changes

Description

• Updated tertiary button styles to match the design system

Screenshots

Before:

After:

Checklist

• [x] I verify the build is in a non-broken state
• [x] I verify all changes are within scope of the linked issue

• [x] I regenerated all CSS files under dist folder
• [x] I tested the UI in all supported browsers
• [x] I tested the UI in dark mode and RTL mode
• [ ] I added/updated/removed Storybook coverage as appropriate

[ArtBlue]

@LuLaValva , the target branch should be changed to 14.2.0.

[LuLaValva]

I updated the border to match Figma. Destructive border on Figma (#d2d2d2) is between color-neutral-1 (#f7f7f7) and color-neutral-2 (#e5e5e5) so I opted instead to set it to color-stroke-subtle which is the same as color-neutral-2. If specificity is important I can:

1. Hardcode to match design
2. Add some transparency to destructive tertiary buttons so they match design on a white background
3. Add some kind of color-neutral-1-2 variable to evo-core

Let me know what you all think.

[agliga]

Looking at this, I don't see the d5d5d5. The stroke subtle light is correct (there they have it as border/subtle/light)

[LuLaValva]

Ok, it should be complete now. My mistake on the button border colors, I have learned to use the internal Figma inspector instead of external tools. Either way, the color I chose is correct.