Correct selection color (helix-editor#7138)

Author: casperstorm

runtime/themes/ferra.toml

@@ -48,8 +48,7 @@
 "ui.text.focus" = { fg = "ferra_coral" }
 "ui.menu" = { fg = "ferra_blush", bg = "ferra_ash" }
 "ui.menu.selected" = { fg = "ferra_coral", bg = "ferra_ash" }
-"ui.selection" = { bg = "ferra_umber", fg = "ferra_night" }
-"ui.selection.primary" = { bg = "ferra_night", fg = "ferra_umber" }
+"ui.selection" = { bg = "ferra_umber" }
 "ui.virtual" = { fg = "ferra_bark" }
 "ui.virtual.whitespace" = { fg = "ferra_bark" }
 "ui.virtual.ruler" = { bg = "ferra_ash" }