[Custom sound]It is not possible to stop upload new sound

[Bartosz Kosiorek]

Steps to reproduce:
1. Prepare some big sound file (about 100MB). You could just download some from Youtube
2. Run Clock
3. Edit alarm
4. Click button "Add custom sound"
5 Select big sound file
6. The copying message will appear

Currently:
- "Cancel" button is not working.
- After closing Clock application, an reopening it the sound alarm name is "qt_temp". Fortunately it is working corretly

Expected
- "Cancel" button is working.
- if file is big (above 50MB) some warning should be displayed
- Before copying, the free disc space needs to be checked
- After closing Clock application during file copying, the correct name should be in alarm sounds list.

[Nekhelesh Ramananthan (nik90)]

I can confirm the issue, but setting the priority to low since the likelyhood of someone setting an alarm that big is unlikely. More over I suspect that this might be a bug in content-hub. Will check with the content-hub developers to figure out how to fix this.

[Nekhelesh Ramananthan (nik90)]

After discussing with Kenvandine, instead of copying the files from music-app over to the clock-app directory, we need to using hardlinks instead. This way the transfer will be instant and the user will not hit this bug anymore.