fix: name+guard Woodcutting/Woodworking, drop regex+deprecated this+InterfaceOptions guards

ProfessionMenu.lua:
- profList: add Name="Woodcutting" (spell 13977860) and Name="Woodworking"
  (spells 1005008-1005011) so getProfessionRanks can find the matching
  GetSkillLineInfo entry. Without Name, both fell through GetSpellInfo+match
  with no result and returned nil,nil.
- getProfessionRanks: replace compName:match(name) (regex) with compName == name
  (plain compare); GetSkillLineInfo names are exact, regex was a bug magnet.
- Guard rank concat at lines ~394/397/400: skip the " (rank)" / " (max)" /
  " (rank/max)" append when getProfessionRanks returns nil so unknown
  skill lines don't error.
- InterfaceOptionsFrame:HookScript: wrap in 'if InterfaceOptionsFrame then';
  CoA's reworked FrameXML has no InterfaceOptionsFrame.

ProfessionMenuOptions.lua:
- Guard InterfaceOptionsFrame / InterfaceOptionsFrame_OpenToCategory /
  InterfaceOptions_AddCategory call sites (Options_Toggle, ProfessionMenu_
  OpenOptions, CreateOptionsUI). All nil on CoA's FrameXML.
- TxtSize dropdown func: drop deprecated WoW-2.x global 'this'; use
  UIDropDownMenu_GetSelectedID(ProfessionMenuOptions_TxtSizeMenu) instead.

ProfessionMenu/ProfessionMenu.lua

@@ -197,12 +197,13 @@ local profList = {
         3274, -- Journeyman 150
         3273, -- Apprentice 75
     }, --FIRSTAID
-    {13977860}, --WOODCUTTING
+    {13977860, Name = "Woodcutting"}, --WOODCUTTING
     {
         1005011, -- Artisan 300
         1005010, -- Expert 225
         1005009, -- Journeyman 150
         1005008, -- Apprentice 75
+        Name = "Woodworking",
     }, --WOODWORKING
 }
 
@@ -372,7 +373,7 @@ function PM:AddProfessions()
     local function getProfessionRanks(compName)
         for skillIndex = 1, GetNumSkillLines() do
             local name, _, _, rank, _, _, maxRank, _, _, _, _, _, _ = GetSkillLineInfo(skillIndex)
-            if compName:match(name) then
+            if compName == name then
                 return rank, maxRank
             end
         end
@@ -391,13 +392,13 @@ function PM:AddProfessions()
                 end
                 local rank, maxRank = getProfessionRanks(profName)
                 if not self.db.hideRank and self.db.hideMaxRank then
-                    name = name .. " |cFF00FFFF("..rank..")"
+                    if rank then name = name .. " |cFF00FFFF("..rank..")" end
                 end
                 if not self.db.hideMaxRank and self.db.hideRank then
-                    name = name .. " |cFF00FFFF("..maxRank..")"
+                    if maxRank then name = name .. " |cFF00FFFF("..maxRank..")" end
                 end
                 if not self.db.hideMaxRank and not self.db.hideRank then
-                    name = name .. " |cFF00FFFF("..rank.."/"..maxRank..")"
+                    if rank and maxRank then name = name .. " |cFF00FFFF("..rank.."/"..maxRank..")" end
                 end
                 local secure = {
                     type1 = 'spell',
@@ -604,11 +605,13 @@ function PM:CreateUI()
 end
 PM:CreateUI()
 
-InterfaceOptionsFrame:HookScript("OnShow", function()
-    if InterfaceOptionsFrame and ProfessionMenuOptionsFrame:IsVisible() then
-		ProfessionMenu_OpenOptions()
-    end
-end)
+if InterfaceOptionsFrame then
+    InterfaceOptionsFrame:HookScript("OnShow", function()
+        if InterfaceOptionsFrame and ProfessionMenuOptionsFrame:IsVisible() then
+            ProfessionMenu_OpenOptions()
+        end
+    end)
+end
 
 -- toggle the main button frame
 function PM:ToggleMainFrame()