Changes to copy button

[Koustavd18]

Description
The copy button is visible when a cell is empty in the logs view.
For in-secure context(HTTP) copy button is visible even though the clipboard is not accessible.

FIXES

• Copy button wont be visible when the cell value is empty in the logs table
• copy button and copy action will not be available for in-secure sessions

[balaji-jr]

1. And we also need to handle the pop-up opening up on the right when selecting text.
2. The same logic is required and should be implemented everywhere else. (Log info popup, stream info section etc ...)

[balaji-jr]

As previously mentioned in #332 (comment),

These 2 things are still not addressed.