Workaround for massive thumb requests delay post request for (adding favourite, get torrent list etc.)

Currently okhttp does not support request priority(See https://github.com/square/okhttp/issues/404), and our GalleryDetailScene will launch at most 200 image requests once, which stuffed okhttp async request queue.
We need another http client to ensure these plain-text request executed in time

app/src/main/java/com/hippo/ehviewer/EhApplication.kt

@@ -215,7 +215,7 @@ class EhApplication : Application(), DefaultLifecycleObserver, ImageLoaderFactor
         @JvmStatic
         val ehProxySelector by lazy { EhProxySelector() }
 
-        val nonCacheOkHttpClient by lazy {
+        private fun buildOneOkHttpClient(): OkHttpClient.Builder {
             val builder = OkHttpClient.Builder()
                 .cookieJar(EhCookieStore)
                 .dns(EhDns)
@@ -231,12 +231,16 @@ class EhApplication : Application(), DefaultLifecycleObserver, ImageLoaderFactor
                 builder.sslSocketFactory(EhSSLSocketFactory, trustManager)
                 builder.proxy(Proxy.NO_PROXY)
             }
-            builder.build()
+            return builder
+        }
+
+        val nonCacheOkHttpClient by lazy {
+            buildOneOkHttpClient().build()
         }
 
         // Never use this okhttp client to download large blobs!!!
-        val okHttpClient by lazy {
-            nonCacheOkHttpClient.newBuilder().cache(
+        val plainTextOkHttpClient by lazy {
+            buildOneOkHttpClient().cache(
                 Cache(
                     application.cacheDir.toOkioPath() / "http_cache",
                     20L * 1024L * 1024L,

app/src/main/java/com/hippo/ehviewer/client/EhEngine.kt

@@ -67,7 +67,7 @@ import org.jsoup.Jsoup
 import java.io.File
 import kotlin.math.ceil
 
-private val okHttpClient = EhApplication.okHttpClient
+private val okHttpClient = EhApplication.plainTextOkHttpClient
 private val MEDIA_TYPE_JSON: MediaType = "application/json; charset=utf-8".toMediaType()
 private const val TAG = "EhEngine"
 private const val MAX_REQUEST_SIZE = 25

app/src/main/java/com/hippo/ehviewer/spider/SpiderQueen.kt

@@ -20,7 +20,7 @@ import android.util.Log
 import androidx.annotation.IntDef
 import androidx.collection.LongSparseArray
 import androidx.collection.set
-import com.hippo.ehviewer.EhApplication.Companion.okHttpClient
+import com.hippo.ehviewer.EhApplication.Companion.plainTextOkHttpClient
 import com.hippo.ehviewer.GetText
 import com.hippo.ehviewer.R
 import com.hippo.ehviewer.Settings
@@ -362,7 +362,7 @@ class SpiderQueen private constructor(val galleryInfo: GalleryInfo) : CoroutineS
             ), referer
         ).build()
         return runSuspendCatching {
-            okHttpClient.newCall(request).executeAsync().use { response ->
+            plainTextOkHttpClient.newCall(request).executeAsync().use { response ->
                 val body = response.body.string()
                 val pages = parsePages(body)
                 val spiderInfo = SpiderInfo(galleryInfo.gid, pages)
@@ -383,7 +383,7 @@ class SpiderQueen private constructor(val galleryInfo: GalleryInfo) : CoroutineS
         val referer = referer
         val request = EhRequestBuilder(url, referer).build()
         try {
-            okHttpClient.newCall(request).execute().use { response ->
+            plainTextOkHttpClient.newCall(request).execute().use { response ->
                 val body = response.body.string()
                 val list = GalleryMultiPageViewerPTokenParser.parse(body)
                 for (i in list.indices) {
@@ -416,7 +416,7 @@ class SpiderQueen private constructor(val galleryInfo: GalleryInfo) : CoroutineS
         val referer = referer
         val request = EhRequestBuilder(url, referer).build()
         try {
-            okHttpClient.newCall(request).execute().use { response ->
+            plainTextOkHttpClient.newCall(request).execute().use { response ->
                 val body = response.body.string()
                 readPreviews(body, previewIndex, spiderInfo)
                 return spiderInfo.pTokenMap[index]