Add eslint-plugin-vue-scoped-css (#26720)

Adds
[eslint-plugin-vue-scoped-css](https://github.com/future-architect/eslint-plugin-vue-scoped-css)
and fixes discovered issues which are:

- 1 unused selector
- 3 selectors with `.full.height` parent in a `<style scoped>` block so
the rule could not find the parent. Move these into the unscoped block
instead. They worked before and after.

web_src/js/components/.eslintrc.yaml

@@ -1,9 +1,11 @@
 plugins:
   - eslint-plugin-vue
+  - eslint-plugin-vue-scoped-css
 
 extends:
   - ../../../.eslintrc.yaml
   - plugin:vue/vue3-recommended
+  - plugin:vue-scoped-css/vue3-recommended
 
 env:
   browser: true
@@ -12,3 +14,4 @@ rules:
   vue/attributes-order: [0]
   vue/html-closing-bracket-spacing: [2, {startTag: never, endTag: never, selfClosingTag: never}]
   vue/max-attributes-per-line: [0]
+  vue-scoped-css/enforce-style-type: [0]

web_src/js/components/RepoActionView.vue

@@ -524,11 +524,6 @@ export function initRepositoryActionView() {
   overflow-y: auto;
 }
 
-.job-group-section .job-group-summary {
-  margin: 5px 0;
-  padding: 10px;
-}
-
 .job-artifacts-title {
   font-size: 18px;
   margin-top: 16px;
@@ -674,24 +669,6 @@ export function initRepositoryActionView() {
 
 /* end fomantic dropdown menu overrides */
 
-/* selectors here are intentionally exact to only match fullscreen */
-
-.full.height > .action-view-right {
-  width: 100%;
-  height: 100%;
-  padding: 0;
-  border-radius: 0;
-}
-
-.full.height > .action-view-right > .job-info-header {
-  border-radius: 0;
-}
-
-.full.height > .action-view-right > .job-step-container {
-  height: calc(100% - 60px);
-  border-radius: 0;
-}
-
 .job-info-header {
   display: flex;
   justify-content: space-between;
@@ -834,6 +811,24 @@ export function initRepositoryActionView() {
   margin-left: 10px;
 }
 
+/* selectors here are intentionally exact to only match fullscreen */
+
+.full.height > .action-view-right {
+  width: 100%;
+  height: 100%;
+  padding: 0;
+  border-radius: 0;
+}
+
+.full.height > .action-view-right > .job-info-header {
+  border-radius: 0;
+}
+
+.full.height > .action-view-right > .job-step-container {
+  height: calc(100% - 60px);
+  border-radius: 0;
+}
+
 /* TODO: group support
 
 .job-log-group {