misc: update optional fields for old songs

Author: imkiva

videos/VRChat-Song/Song-可惜没如果.md

@@ -2,7 +2,8 @@
 URL: https://www.youtube.com/watch?v=5DEkEaQ0NFY
 CategoryID: 11
 CategoryName: Others
+TitleRemove: "| Song^_^"
+TitlePrefix: "[Song]"
 ---
 
 可惜没如果 If Only... | VRChat Dance | Song^_^
-

videos/VRChat-Song/Song-呐喊.md

@@ -2,6 +2,8 @@
 URL: https://www.youtube.com/watch?v=5zmVzmxn9ys
 CategoryID: 11
 CategoryName: Others
+TitleRemove: "| Song^_^"
+TitlePrefix: "[Song]"
 ---
 
 呐喊 Screaming | VRChat Fitness Dance | Song^_^

videos/VRChat-Song/Song-期待爱.md

@@ -2,7 +2,8 @@
 URL: https://www.youtube.com/watch?v=gJmdLhJCV84
 CategoryID: 11
 CategoryName: Others
+TitleRemove: "| Song^_^"
+TitlePrefix: "[Song]"
 ---
 
 期待爱 Expect Love (duo dance) | VRChat Fitness Dance | Song^_^
-

videos/VRChat-Song/Song-着魔.md

@@ -2,8 +2,8 @@
 URL: https://www.youtube.com/watch?v=h0l_mWX4CGA
 CategoryID: 11
 CategoryName: Others
+TitleRemove: "| Song^_^"
+TitlePrefix: "[Song]"
 ---
 
 着魔 Possession | VRChat Fitness Dance | Song^_^
-
-