Add moderation log

• filtering by specific admin/moderator
• filtering by date range
• searching by log message
• pagination

src/api/moderationLog.js

+import request from '@/utils/request'
+import { getToken } from '@/utils/auth'
+import { baseName } from './utils'
+
+export async function fetchLog(authHost, token, page = 1) {
+  return await request({
+    baseURL: baseName(authHost),
+    url: `/api/pleroma/admin/moderation_log?page=${page}`,
+    method: 'get',
+    headers: authHeaders(token)
+  })
+}
+
+const authHeaders = (token) => token ? { 'Authorization': `Bearer ${getToken()}` } : {}