feat: implement attachment preview

Signed-off-by: Sebastian <krupinski01@gmail.com>

src/stores/mailUiStore.ts

@@ -714,6 +714,10 @@ export const useMailUiStore = defineStore('mailUiStore', () => {
     return mailOperationsStore.attachmentBlob(entity, part)
   }
 
+  function attachmentPreviewBlob(entity: EntityObject, part: Parameters<typeof mailOperationsStore.attachmentPreviewBlob>[1]) {
+    return mailOperationsStore.attachmentPreviewBlob(entity, part)
+  }
+
   return {
     sidebarVisible,
     settingsDialogVisible,
@@ -763,6 +767,7 @@ export const useMailUiStore = defineStore('mailUiStore', () => {
     moveMessages,
     downloadMessage,
     attachmentBlob,
+    attachmentPreviewBlob,
     messageSelectionModeActivate,
     messageSelectionModeDeactivate,
     messageSelectionToggleOne,
@@ -788,4 +793,4 @@ export const useMailUiStore = defineStore('mailUiStore', () => {
     confirmDeleteFolder,
     flagSelectedMessages,
   }
-})
+})