Fix the following style-lint errors and warnings for app/assets/stylesheets/framework/common.scss

Problem

Fix the following style-lint errors and warnings for app/assets/stylesheets/framework/common.scss

 133:1  ⚠  ".block-truncated" has the same properties as our BS4 utility class ".text-truncate (1853:1)" so please use that instead.   stylelint-gitlab/utility-classes     
 188:5  ⚠  "li" has the same properties as our BS4 utility class ".border-bottom-0 (113:1)" so please use that instead.                stylelint-gitlab/utility-classes     
 200:1  ⚠  Selector should be written in lowercase with hyphens                                                                        selector-class-pattern               
 238:1  ⚠  Selector should be written in lowercase with hyphens                                                                        selector-class-pattern               
 242:1  ⚠  Selector should be written in lowercase with hyphens                                                                        selector-class-pattern               
 274:3  ⚠  Expected a placeholder selector (e.g. %placeholder) to be used in @extend                                                   scss/at-extend-no-missing-placeholder
 275:3  ⚠  Expected a placeholder selector (e.g. %placeholder) to be used in @extend                                                   scss/at-extend-no-missing-placeholder
 295:1  ⚠  Selector should be written in lowercase with hyphens                                                                        selector-class-pattern               
 296:3  ⚠  Expected a placeholder selector (e.g. %placeholder) to be used in @extend                                                   scss/at-extend-no-missing-placeholder

What to do

  1. If possible, replace the CSS class with a utility one, check common.scss and https://getbootstrap.com/docs/4.4/utilities/ for existing ones
  2. Double check if all the warning have been fixed by running yarn run stylelint-file app/assets/stylesheets/framework/common.scss
  3. In the MR, add screenshots of the affected areas before and after the changes, check the first MR as a guideline
  4. If there are a lot of changes, we recommend to break them into smaller MRs
  5. Double check the usage of each changed class both in CE and EE
  6. EE changes should either be backported into CE or moved into ee/ folder. You can read more about how to handle EE code here
  7. Label the MR with CSS cleanup
Edited by 🤖 GitLab Bot 🤖