fixed a bug where the autocompletion did not put the cursor at the end

data/songtemp.csv

@@ -1,3 +1,3 @@
-1
+9
 Ancient.mp3,Arm_Candy.mp3,Beach_Disco.mp3,Beach_Walk.mp3,Bird_Therapist.mp3,Carol_of_the_Bells.mp3,Castlevania.mp3,Cats_Searching_for_the_Truth.mp3,Classique.mp3,Cloud_Chaser.mp3,Dragonfly.mp3,Easy_Seas.mp3,Entire.mp3,Eyes_of_Glory.mp3,Finding_Me.mp3,Forgiveness.mp3,Fun_in_the_Sun.mp3,Half_Measures.mp3,Happy_Sixth.mp3,Hear_the_Noise.mp3,Hi_Q.mp3,Hot_Coffee.mp3,How_it_Began.mp3,I_ll_Follow_You.mp3,If_I_Had_a_Chicken.mp3,Jal_Edge_of_Water.mp3,Juno_In_The_Space_Maze.mp3,Ladybug.mp3,Late_Night_Drive.mp3,Meteor.mp3,Modern_Situations.mp3,Move_Out.mp3,Official_National_Anthem.mp3,Plenty_Step.mp3,Point_Green_Getdown.mp3,Retrograde.mp3,Right_Here_Beside_You.mp3,Safety_Net.mp3,Same_Time.mp3,Static.mp3,Stranger_Danger.mp3,Subharmonic_Bliss.mp3,Sun_Machine_One.mp3,The_Computer_Has_Feelings.mp3,Thinking_Of_Us.mp3,This_is_Not_IDM.mp3,This_is_Not_Jazz.mp3,This_is_Not_a_Ballad.mp3,Time_s_Up.mp3,Triumph.mp3,Unstoppable.mp3,Western_Spaghetti.mp3,Zameen_Movement_of_Earth.mp3,bensound-clearday.mp3,bensound-endlessmotion.mp3,bensound-energy.mp3,bensound-happyrock.mp3
-176.2394561767578
+110.88689422607422