feat: SLA reports view (#9189)

* feat: SLA report table


* feat: Add SLA popover card

* feat: Update popover position

* feat: Add loader

* Update SLACardLabel.vue

* feat: Update column order

* chore: fix conditions

* Update SLATable.vue

* chore: enable reports in ui

* chore: Revamp report SLA apis

* chore: revert download method

* chore: improve the code

* Update enterprise/app/views/api/v1/accounts/applied_slas/download.csv.erb

Co-authored-by: Vishnu Narayanan <iamwishnu@gmail.com>

* chore: style fixes

* chore: fix specs

* feat: Add number of conversations

* chore: review comments

* fix: translation

* Update app/javascript/dashboard/i18n/locale/en/report.json

Co-authored-by: Vishnu Narayanan <iamwishnu@gmail.com>

* Update app/javascript/dashboard/i18n/locale/en/report.json

Co-authored-by: Vishnu Narayanan <iamwishnu@gmail.com>

* Update app/javascript/dashboard/i18n/locale/en/report.json

Co-authored-by: Vishnu Narayanan <iamwishnu@gmail.com>

* Update SLAReportItem.vue

* Update report.json

* Update package.json

* chore: review comments

* chore: remove unused translation

* feat: Add TableHeaderCell component

* chore: more review fixes

* Update app/javascript/dashboard/components/widgets/TableHeaderCell.vue

Co-authored-by: Shivam Mishra <scm.mymail@gmail.com>

* Update TableHeaderCell.vue

---------

Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>
Co-authored-by: Vishnu Narayanan <iamwishnu@gmail.com>
Co-authored-by: Shivam Mishra <scm.mymail@gmail.com>

package.json

@@ -22,7 +22,7 @@
   "size-limit": [
     {
       "path": "public/packs/js/widget-*.js",
-      "limit": "280 KB"
+      "limit": "281 KB"
     },
     {
       "path": "public/packs/js/sdk.js",