Implement temporary permission check public functions

backend/src/plugins/ModActions/functions/hasMutePerm.ts

@@ -0,0 +1,11 @@
+import { GuildMember, Snowflake } from "discord.js";
+import { GuildPluginData } from "knub";
+import { ModActionsPluginType } from "../types";
+
+export async function hasMutePermission(
+  pluginData: GuildPluginData<ModActionsPluginType>,
+  member: GuildMember,
+  channelId: Snowflake,
+) {
+  return (await pluginData.config.getMatchingConfig({ member, channelId })).can_mute;
+}