Header for cards and suggestions for aesthetic look

[tu2-atmanand]

I don't know if this will be going to effect the aesthetic look of the Card View, but still would like to discuss it, since it might be possible to blend it in.

• The file name can be shown in this header.
• The metadata can be shown in this header, as described further in the #19
• An option can be provided in the setting, whether the user wants to see the header or want to see the file name inside the content itself.

Now, I understand, putting a lot of things inside the card, make it looks very clumsy or over-bloated. And people liked Google Notes and all because their card UI is very clean. So to help with the aesthetic look :

• The delete button is unnecessary and should be made optional as explained in the #23
• The pin button can be made hidden and will only be visible when the user will hover near the bottom corner.
• Similar to the pin button, at the place of delete button, an open file button can be provided, which will be hidden just like pin button and will be used to open the note file. This is required, if the first requests made by me here has been implemented, that is to open the note by double click instead of single. (Also requires because of some grandpas likes to see buttons and are not aware of the double click features and all, but again this is completely optional).