style: update search viewers

[KeN095]

Closes #334

[KeN095]

You might notice it, but there isn't consistency in how the divider color is despite it having the same color code. Don't know why but I hope it's just a debug issue.

[cswills]

You might notice it, but there isn't consistency in how the divider color is despite it having the same color code. Don't know why but I hope it's just a debug issue.

I think that's because the divider is one pixel high but it is rendered over two pixels.

[KeN095]

The divider had erratic results in testing even by making a divider through Container with BoxDecoration with only a bottom border.

Each divider had lighter or darker color than the one before it and would also disappear in the middle of scrolling, regardless of light/dark theme.

Sometimes the coloring of the divider would be fixed if you close and open the Search viewers page but was better to remove it for consistent UI in the end.