Support POST requests on /api/v2/CrawlByWarcFilename

This is to workaround hitting request size limits when lookup a lot of files in one go.

ui/src/bamboo/api/ApiV2Controller.java

@@ -2,12 +2,13 @@
 
 import bamboo.app.Bamboo;
 import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
 
+import static org.springframework.web.bind.annotation.RequestMethod.GET;
+import static org.springframework.web.bind.annotation.RequestMethod.POST;
+
 @Controller
 public class ApiV2Controller {
  private final Bamboo wa;
@@ -17,7 +18,8 @@ public ApiV2Controller(Bamboo wa) {
  }
 
  // Used by pandas-admin for the pages feature
- @GetMapping("/api/v2/CrawlsByWarcFilename")
+ // supports both GET and POST in order to allow larger requests
+ @RequestMapping(value = "/api/v2/CrawlsByWarcFilename", method = {GET, POST})
  @ResponseBody
  public List<ApiDAO.CrawlsByFilename> crawlsByWarcFilename(@RequestParam("filename") List<String> filenames) {
  return wa.dao.api().crawlsByWarcFilename(filenames);