dismiss warning when loading theme

src/components/style_switcher/style_switcher.js

@@ -162,7 +162,7 @@ export default {
       } else if (origin === 'localStorage') {
         // FE upgraded from v2
         if (themeEngineVersion === 2) {
-          return 'upgraded_from_v2'
+          return t(pre + 'upgraded_from_v2')
         }
         // Admin downgraded FE
         if (themeEngineVersion > CURRENT_VERSION) {
@@ -426,6 +426,7 @@ export default {
           this.onImport(this.tempImportFile, true)
           break
       }
+      this.dismissWarning()
     },
     loadThemeFromLocalStorage (confirmLoadSource = false) {
       const {

src/i18n/en.json

@@ -399,6 +399,7 @@
         "load_theme": "Load theme",
         "use_snapshot": "Keep as is",
         "help": {
+          "upgraded_from_v2": "PleromaFE has been upgraded, theme could look a little bit different than you remember.",
           "v2_imported": "File you imported was made for older FE. We try to maximize compatibility but there still could be inconsitencies.",
           "future_version_imported": "File you imported was made in newer version of FE.",
           "older_version_imported": "File you imported was made in older version of FE.",