empty searchTerm support (#259)

* linter run

* convert search params to queryParams

server/src/main/kotlin/suwayomi/tachidesk/manga/MangaAPI.kt

@@ -47,8 +47,8 @@ object MangaAPI {
             get("{sourceId}/filters", SourceController::getFilters)
             post("{sourceId}/filters", SourceController::setFilter)
 
-            get("{sourceId}/search/{searchTerm}/{pageNum}", SourceController::searchSingle)
-//            get("search/{searchTerm}/{pageNum}", SourceController::searchGlobal)
+            get("{sourceId}/search", SourceController::searchSingle)
+//            get("all/search", SourceController::searchGlobal) // TODO
         }
 
         path("manga") {

server/src/main/kotlin/suwayomi/tachidesk/manga/controller/SourceController.kt

@@ -80,8 +80,8 @@ object SourceController {
     /** single source search */
     fun searchSingle(ctx: Context) {
         val sourceId = ctx.pathParam("sourceId").toLong()
-        val searchTerm = ctx.pathParam("searchTerm")
-        val pageNum = ctx.pathParam("pageNum").toInt()
+        val searchTerm = ctx.queryParam("searchTerm") ?: ""
+        val pageNum = ctx.queryParam("pageNum")?.toInt() ?: 1
         ctx.future(future { Search.sourceSearch(sourceId, searchTerm, pageNum) })
     }
 

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/lang/io.kt

@@ -7,6 +7,6 @@ import java.io.File
  * 
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ 
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
-fun File.renameTo(newPath: String) = renameTo(File(newPath))
+fun File.renameTo(newPath: String) = renameTo(File(newPath))