Migrate the old cooldown settings into C.cooldown

The shared appearance.cd values (font, size, threshold, tenths, colors)
move to the cooldown table. "Enable Durations On Foreign Frames" and
"Hide Foreign Cooldown Animations" become the Other Addons numbers and
sweep; the spellbook and character slots take that sweep, and the
foreign numbers when "Enable Durations On Blizzard Frames" was off.

Each module's old options move to its kind: the bars, bags and totems
reverse, the buffs sweep and reverse, and the nameplate debuff text,
sweep and reverse, with "Enable Debuff Timers" off turning off both
numbers and sweep. Unit frames had one set per frame and now share one:
the target frame's timer options and the raid frames' "Show Time Left"
stand for the rest. The per-frame keys, appearance.cd and bars.cd_size
are removed.

The migration is keyed on the old keys rather than the version, so it
also runs on dev installs, and runs once.

api/config.lua

@@ -1431,6 +1431,67 @@ function pfUI:MigrateConfig()
     pfUI_config.unitframes.always2dportrait = nil
   end
 
+  -- migrate the scattered cooldown settings into the cooldown table; keyed
+  -- on the old settings rather than the version, like the portrait style
+  local cooldown = pfUI_config.cooldown
+  local cd = pfUI_config.appearance.cd
+  if cd then
+    for _, entry in pairs({ "font", "font_size", "dynamicsize", "threshold", "milliseconds",
+      "lowcolor", "normalcolor", "minutecolor", "hourcolor", "daycolor" }) do
+      cooldown[entry] = cd[entry] or cooldown[entry]
+    end
+
+    cooldown.foreign.text = cd.foreign or cooldown.foreign.text
+    if cd.hideanim then
+      cooldown.foreign.animation = cd.hideanim == "1" and "0" or "1"
+    end
+
+    -- spellbook and character slots took the foreign sweep, and with the
+    -- Blizzard toggle off the foreign numbers too
+    cooldown.blizzard.animation = cooldown.foreign.animation
+    if cd.blizzard == "0" then
+      cooldown.blizzard.text = cooldown.foreign.text
+    end
+
+    pfUI_config.appearance.cd = nil
+  end
+
+  local function move(config, old, kind, entry)
+    if config[old] then
+      cooldown[kind][entry] = config[old]
+      config[old] = nil
+    end
+  end
+
+  move(pfUI_config.bars, "cooldown_reverse", "actionbar", "reverse")
+  move(pfUI_config.appearance.bags, "cooldown_reverse", "bags", "reverse")
+  move(pfUI_config.buffs, "cooldown_anim", "buff", "animation")
+  move(pfUI_config.buffs, "cooldown_reverse", "buff", "reverse")
+  move(pfUI_config.totems, "cooldown_reverse", "totem", "reverse")
+  move(pfUI_config.nameplates, "debufftext", "nameplate", "text")
+  move(pfUI_config.nameplates, "debuffanim", "nameplate", "animation")
+  move(pfUI_config.nameplates, "debreverse", "nameplate", "reverse")
+
+  if pfUI_config.nameplates.debufftimers == "0" then
+    cooldown.nameplate.text, cooldown.nameplate.animation = "0", "0"
+  end
+
+  -- one setting now covers every unit frame: the target frame's auras and
+  -- the raid frames' indicators stand for the rest
+  move(pfUI_config.unitframes.target, "cooldown_text", "unitframe", "text")
+  move(pfUI_config.unitframes.target, "cooldown_anim", "unitframe", "animation")
+  move(pfUI_config.unitframes.target, "cooldown_reverse", "unitframe", "reverse")
+  move(pfUI_config.unitframes.raid, "indicator_time", "indicator", "text")
+
+  for _, unit in pairs(pfUI_config.unitframes) do
+    if type(unit) == "table" then
+      unit.cooldown_text, unit.cooldown_anim, unit.cooldown_reverse, unit.indicator_time = nil, nil, nil, nil
+    end
+  end
+
+  pfUI_config.nameplates.debufftimers = nil
+  pfUI_config.bars.cd_size = nil
+
   -- Remove "Show only own debuffs" from unitframes and nameplates
   -- (feature was removed; only Target Debuff Bar in buffwatch keeps it)
   if pfUI_config.nameplates then