fix: revert using `useSelfAccount` (hotfix)

This reverts commit 11fc2572d5.

components/account/AccountFollowButton.vue

@@ -8,7 +8,7 @@ const { account, command, context, ...props } = defineProps<{
   command?: boolean
 }>()
 
-const isSelf = useSelfAccount(() => account)
+const isSelf = $computed(() => currentUser.value?.account.id === account.id)
 const enable = $computed(() => !isSelf && currentUser.value)
 const relationship = $computed(() => props.relationship || useRelationship(account).value)
 

components/account/AccountHeader.vue

@@ -75,7 +75,7 @@ watchEffect(() => {
   iconFields.value = icons
 })
 
-const isSelf = useSelfAccount(() => account)
+const isSelf = $computed(() => currentUser.value?.account.id === account.id)
 </script>
 
 <template>

components/account/AccountMoreButton.vue

@@ -7,7 +7,7 @@ const { account } = defineProps<{
 }>()
 let relationship = $(useRelationship(account))
 
-const isSelf = $(useSelfAccount(() => account))
+const isSelf = $computed(() => currentUser.value?.account.id === account.id)
 
 const masto = useMasto()
 const toggleMute = async () => {