Tab-session-manager: Add search function for saved tabs

[gramireus]

It would be fantastic if I could search through the saved tab sessions for a specific tab or session.

[sienori]

I will implement the search function in the future.
duplicate: #142

[ThisIsABug]

I actually think this isn't a duplicate, because #142 is a feature request for searching in the title of the saved session while this one is about searching in the titles of the tabs inside a session. And as far as I know (please correct me if I just didn't find it) this feature isn't implemented.

[ElhemEnohpi]

It would be great to search for tab titles in saved sessions! Session Boss extension has this, so I'm using it. But I would prefer to use Tab Session Manager. Thanks. PS I also think this shouldn't be marked "duplicate".

[Ghos3t]

It would be very helpful if it was possible to search by the title or the URL of a tab, as many times I might remember the title of the website or it's URL but not which session I saved it under.

[sienori]

In version 6.2.0, I implemented the search function for saved tab title!

Thanks!