add "reject quotes" toggle at user and instance level

+ improve, cleanup, and de-duplicate quote resolution
+ add warning message when quote cannot be loaded
+ add "process error" framework to display warnings when a note cannot be correctly loaded from another instance

packages/frontend/src/components/SkNoteSub.vue

@@ -46,7 +46,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 					<p v-if="note.renoteCount > 0" :class="$style.noteFooterButtonCount">{{ note.renoteCount }}</p>
 				</button>
 				<button
-					v-if="canRenote"
+					v-if="canRenote && !$i?.rejectQuotes"
 					ref="quoteButton"
 					class="_button"
 					:class="$style.noteFooterButton"