Add postcss-import plugin for postcss check + fix warning (#6691)

* Add postcss-import plugin for postcss check + fix warning

* Update etalons

* Remove test:dev

Author: dk981234

packages/survey-creator-core/package.json

@@ -14,7 +14,7 @@
     "test": "jest",
     "test:cov": "jest --coverage",
     "test:dev": "jest --watch",
-    "test:postcss": "postcss build/survey-creator-core.css --silent  -u postcss-calc -u autoprefixer -u postcss-fail-on-warn -o survey-creator-core.postcss.css && rimraf survey-creator-core.postcss.css",
+    "test:postcss": "postcss build/survey-creator-core.css --silent  -u postcss-calc -u autoprefixer -u postcss-fail-on-warn -u postcss-import -o survey-creator-core.postcss.css && rimraf survey-creator-core.postcss.css",
     "doc_gen": "node doc_generator/editor_docgenerator.js src/entries/index.ts",
     "watch": "webpack --env buildType=dev --watch",
     "watch:dev": "webpack --env buildType=dev --watch",
@@ -58,6 +58,7 @@
     "postcss-calc": "9.0.1",
     "postcss-cli": "10.1.0",
     "postcss-fail-on-warn": "0.2.1",
+    "postcss-import": "^16.1.0",
     "puppeteer": "^1.19.0",
     "qunitjs": "2.2.0",
     "replace-in-file": "^3.4.3",
@@ -93,4 +94,4 @@
       "tag": true
     }
   }
-}
+}

packages/survey-creator-core/src/components/toolbox/toolbox-tool.scss

@@ -392,11 +392,6 @@
     padding-inline-end: var(--ctr-toolbox-item-padding-right-no-text, calcSize(1));
     box-sizing: border-box;
     align-self: flex-start;
-    &:after {
-      content:"\a0";
-      @include ctrSmallBoldFont;
-      width: 0;
-    }
   }
   .svc-toolbox__tool--dots {
     padding-inline-end: 0;