feat(lightspeed): add missing hl groups; change some hl to links

Author: A-Lamia

lua/astrotheme/groups/plugins/lightspeed.lua

@@ -7,11 +7,12 @@ local function callback()
     LightspeedShortcut = { fg = C.mantle, bg = C.dark_red, bold = true, underline = true },
     LightspeedShortcutOverlapped = { fg = C.mantle, bg = C.blue, bold = true, underline = true },
     LightspeedMaskedChar = { fg = C.light_green },
-    LightspeedGreyWash = { fg = C.subtext1, bg = C.none },
     LightspeedUnlabeledMatch = { fg = C.surface2, bold = true },
-    LightspeedOneCharMatch = { fg = C.green, bg = C.dark_red, bold = true },
-    LightspeedUniqueChar = { fg = C.surface2, bold = true },
-    LightspeedPendingOpArea = { fg = C.yellow },
+    LightspeedUniqueChar = { link = "LightspeedUnlabeledMatch" },
+    LightspeedGreyWash = { link = "Comment" },
+    LightspeedOneCharMatch = { link = "LightspeedShortcut" },
+    LightspeedPendingOpArea = { link = "IncSearch" },
+    LightspeedCursor = { link = "Cursor" },
   }
 end