fix: mobile dialog close button visibility (#4010)

* Initial plan

* Fix mobile dialog close button visibility by adding max-height and scrollable content

Co-authored-by: Soulter <37870767+Soulter@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Soulter <37870767+Soulter@users.noreply.github.com>

dashboard/src/views/ExtensionPage.vue

@@ -1473,7 +1473,7 @@ watch(marketSearch, (newVal) => {
   <v-dialog v-model="loadingDialog.show" width="700" persistent>
     <v-card>
       <v-card-title class="text-h5">{{ loadingDialog.title }}</v-card-title>
-      <v-card-text>
+      <v-card-text style="max-height: calc(100vh - 200px); overflow-y: auto;">
         <v-progress-linear v-if="loadingDialog.statusCode === 0" indeterminate color="primary"
           class="mb-4"></v-progress-linear>