Small bogster theme improvements (#11353)

* Add a distinct jump-label to bogster theme

* Make the primary label visible in the bogster theme

runtime/themes/bogster.toml

@@ -59,8 +59,10 @@
 "ui.text.focus" = { fg = "bogster-fg1", modifiers= ["bold"] }
 "ui.virtual.whitespace" = "bogster-base5"
 "ui.virtual.ruler" = { bg = "bogster-base0" }
+"ui.virtual.jump-label" = { fg = "bogster-base0", bg = "bogster-yellow", modifiers = [ "bold" ] }
 
-"ui.selection" = { bg = "bogster-base3" }
+"ui.selection" = { bg = "bogster-base2" }
+"ui.selection.primary" = { bg = "bogster-base3" }
 "ui.cursor.match" = { fg = "bogster-base3", bg = "bogster-orange" }
 "ui.cursor" = { fg = "bogster-base5", modifiers = ["reversed"] }