ViewComment: fix bug on reference
ViewNotices: tweak ui
ViewNotices: add app bar, tweak number, optimize refresh
MemoryLeak: fixing memory leak issue by removing ImgSrc

1. add new extension to the comments img
2. remove ImgSrc from articles and comments
3. add ImgSrc to new class: recommend_article
4. change RecommendedList to point to the new class
5. remove ImgSrc from xaml

also fixed a bit bug - GetNoticesV2
ViewNotices: enable viewing your own item
fix bug in WeakReference
fix bug - ANID2 and ReadArticle for recommend_article
ViewNotices: add a confirmation for clearing all messages
enabled paging for notices; but not in use.
fix bug in recommend_article getting comment
bug fixes:

1. remove gesture from article to outside
2. font-size issue
3. object embed
fix minor spacing issue in ViewComments
ViewNotices: count has a bit problem in update; fixing
prepare update
Ask for review
remove nightmode text
prevent customer come back too early
guokr oauth 2: finished the login flow
switch to verifyAccountV3
GetLatestPostsV3 completed, using API