ui: change default values

packages/ui-default/templates/partials/discussion_edit_form.html

@@ -43,5 +43,5 @@
       markdown:true,
       required:true,
       extra_style:'height: 500px',
-      extra_class:'auto-resize'
+      extra_textarea_class:'auto-resize'
     }) }}

packages/ui-default/templates/partials/problem_default.md

@@ -12,17 +12,13 @@ Two integers x and y, satisfying $0\leq x,y\leq 32767$ .
 ## Output
 One integer, the sum of x and y.
 
-# Sample 1
+# Samples
 
-## Input
-
-```
+```input1
 123 500
 ```
 
-## Output
-
-```
+```outpu1
 623
 ```
 

packages/ui-default/templates/partials/training_default.json

@@ -3,12 +3,12 @@
     "_id": 1,
     "title": "最初的最初 - A+B Problem",
     "requireNids": [],
-    "pids": [1000, "56c52ade2fefd90539000005"]
+    "pids": [1, "P1001"]
   },
   {
     "_id": 2,
     "title": "最初的进阶",
     "requireNids": [1],
-    "pids": [1001, 1002]
+    "pids": [2, 3]
   }
 ]