temporarily hide marked logs

[jan831]

so, temporary show only the matched lines from the text filter I would use it a lot for marking logs in different colors, without having to select the matches when already having other marked lines

useful for the following use case:

• search for string ABC, select all, mark in red
• search for string DEF, select all, mark in blue
• search for string XYZ, select all, mark in green

now we have the red, blue and green lines all together

[hamster620]

@jan831 Thanks for suggestion, we will try including the behavior you mentioned in the future release.