Merge branch '25518-uniquely-style-labels' into 'master'

added border-radius and padding to labels

## What does this MR do?

It creates a pill like style for labels.

## Are there points in the code the reviewer needs to double check?
-

## Why was this MR needed?
get a unique label look/style


## Screenshots (if relevant)
![image](/uploads/2cf347984ae4e36cd061c5a761ee99c9/image.png)
![image](/uploads/c23bbeba4b2525b4f36dac5a0fa1037c/image.png)


## Does this MR meet the acceptance criteria?

- [ ] [Changelog entry](https://docs.gitlab.com/ce/development/changelog.html) added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if it does - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

## What are the relevant issue numbers?


Closes #25518

See merge request !8054

app/assets/stylesheets/framework/variables.scss

@@ -486,6 +486,7 @@ $jq-ui-default-color: #777;
 $label-gray-bg: #f8fafc;
 $label-inverse-bg: #333;
 $label-remove-border: rgba(0, 0, 0, .1);
+$label-border-radius: 14px;
 
 /*
 * Lint

app/assets/stylesheets/pages/issuable.scss

@@ -30,6 +30,7 @@
 
     .color-label {
       padding: 6px 10px;
+      border-radius: $label-border-radius;
     }
   }
 

app/assets/stylesheets/pages/labels.scss

@@ -104,7 +104,8 @@
 }
 
 .color-label {
-  padding: 3px 4px;
+  padding: 3px 7px;
+  border-radius: $label-border-radius;
 }
 
 .dropdown-labels-error {