feat(input-message): add component tokens and deprecate --calcite-input-message-spacing-value

[Elijbet]

Related Issue: #7180

Adds the following tokens to input-message component:

--calcite-input-message-icon-color: Specifies the component's icon color.
--calcite-input-message-spacing: Specifies the top margin space above the component.

Deprecates --calcite-input-message-spacing-value: Specifies the top margin space above the component.

[macandcheese]

Looking at the Chromatic, this introduces some spacing changes that should be looked at, for example: https://www.chromatic.com/test?appId=6266d45509d7eb004aa254fb&id=67da0165ade786a6a55044d8

[Elijbet]

Looking at the Chromatic, this introduces some spacing changes that should be looked at, for example: https://www.chromatic.com/test?appId=6266d45509d7eb004aa254fb&id=67da0165ade786a6a55044d8

@macandcheese I think this was fixed here: ab42f8b

[driskull]

LGTM!

Should we note the deprecation in the changelog? I don't think it would show up as is since its not in the PR title.

[jcfranco]

@Elijbet Can you update the PR description with a commit override to include the deprecation entry (example)?

You can add this to PRs that aren't exclusively deprecation-related (example), but we'll need the override since it was already installed.