fix(range): remove unnecessary thumb positioning for firefox (port of #…

…1055) (#1062)

## PR Checklist

Please check if your PR fulfills the following requirements:

- [ ] Tests for the changes have been added (for bug fixes / features)
- [ ] Docs have been added / updated (for bug fixes / features)
- [ ] If applicable, have a visual design approval

## PR Type

What kind of change does this PR introduce?

<!-- Please check the one that applies to this PR using "x". -->

- [x] Bugfix
- [ ] Feature
- [ ] Code style update (formatting, local variables)
- [ ] Refactoring (no functional changes, no api changes)
- [ ] Build related changes
- [ ] CI related changes
- [ ] Documentation content changes
- [ ] Other... Please describe:

## What is the current behavior?

<!-- Please describe the current behavior that you are modifying, or
link to a relevant issue. -->

Issue Number: CDE-1449

## What is the new behavior?

## Does this PR introduce a breaking change?

- [ ] Yes
- [x] No

<!-- If this PR contains a breaking change, please describe the impact
and migration path for existing applications below. -->

## Other information

projects/angular/src/forms/styles/_range.clarity.scss

@@ -96,7 +96,6 @@
     }
     &:disabled::-moz-range-thumb {
       border: 0;
-      transform: translate(0, var(--clr-forms-range-thumb-margin-top, forms-variables.$clr-forms-range-thumb-margin));
 
       @include forms-mixins.range-thumb-style(
         forms-variables.$clr-forms-range-thumb-margin,
@@ -166,7 +165,6 @@
 
     &::-moz-range-thumb {
       border: 0;
-      transform: translate(0, var(--clr-forms-range-thumb-margin-top, forms-variables.$clr-forms-range-thumb-margin));
 
       @include forms-mixins.range-thumb-style(
         forms-variables.$clr-forms-range-thumb-margin,