6Manhua: Update mirrors url and fix image not loading (#19114)

src/zh/sixmh/build.gradle

@@ -6,7 +6,7 @@ ext {
     extName = '6Manhua / Qixi Manhua'
     pkgNameSuffix = 'zh.sixmh'
     extClass = '.SixMH'
-    extVersionCode = 8
+    extVersionCode = 9
 }
 
 apply from: "$rootDir/common.gradle"

src/zh/sixmh/src/eu/kanade/tachiyomi/extension/zh/sixmh/SixMH.kt

@@ -182,6 +182,7 @@ class SixMH : HttpSource(), ConfigurableSource {
     override fun pageListParse(response: Response): List<Page> {
         val result = Unpacker.unpack(response.body.string(), "[", "]")
             .ifEmpty { return emptyList() }
+            .replace("\\u0026", "&")
             .replace("\\", "")
             .removeSurrounding("\"").split("\",\"")
         return result.mapIndexed { i, url -> Page(i, imageUrl = url) }
@@ -213,7 +214,7 @@ class SixMH : HttpSource(), ConfigurableSource {
         const val MIRROR_PREF = "MIRROR"
 
         /** Note: mirror index affects [chapterListParse] */
-        val MIRRORS get() = arrayOf("6mh67.com", "qiximh3.com")
+        val MIRRORS get() = arrayOf("sixmanhua.com", "qiximh3.com")
         val MIRROR_NAMES get() = arrayOf("6漫画", "七夕漫画")
 
         private val dateFormat by lazy { SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH) }