⎕PW should update on layout changes

[abrudz]

Describe the issue you are having

When auto-PW is enabled, I expect ⎕PW to track the session width at all times. However, resizing the fake inner windows, e.g. workspace explorer, debug pane, and editors, thereby causing the session to change width, doesn't have an effect on ⎕PW. Changing the size of the real outer window, does update ⎕PW.

Paste the contents of Help → About (Shift+F1)

IDE:
  Version: 4.4.3676
  Platform: Win32
  Date: 2021-12-14 22:48:37 +0100
  Git commit: 8be66466c2ea7c9cc631f06a54c88133a04a650d
  Preferences:{
    "autoCloseBrackets":"0",
    "autoPW":"1",
    "colourScheme":"Dracula",
    "confirmations":"{\"SaveFileOptionsExtension:.apln\":100,\"SaveFileOptionsExtension:.dyalog\":100,\"\":100}",
    "indentOnOpen":"0",
    "kbdLocale":"en_GB",
    "keys":"{\"BK\":[\"Alt-Up\",\"Ctrl-Shift-Backspace\"],\"DK\":[\"Ctrl-Shift-D\"],\"FD\":[\"Alt-Down\",\"Ctrl-Shift-Enter\"],\"FX\":[\"Ctrl-S\"],\"QCP\":[\"Ctrl-Shift-P\"],\"ZM\":[\"Ctrl-Shift-Up\"],\"PF11\":[\"F11\"]}",
    "lbarOrder":"← +-×÷*⍟⌹!? |⌊⊥⊤⊣⊢ =≠≤<>≥≡≢ ∨∧⍲⍱ ↓⊂⊃⊆⌷⍋⍒ ⍳⍸∊⍷∪∩~ /\\⌿⍀ ,⍪⍴⌽⊖⍉ ¨⍨⍣.∘⍤⍥@ ⍞⎕⍠⌸⌺⌶⍎⍕ ⋄⍝→⍵⍺∇& ¯⍬ ↑○⌈ ",
    "menu":"# see below for syntax\n\nDyalog                          {mac}\n  About Dyalog             =ABT\n  -\n  Preferences...           =PRF\n  -                            \n  &Quit                    =QIT\n&File                           {!browser}\n  &Open...                 =OWS {local}\n  &New Session             =NEW\n  &Connect...              =CNC\n  -                             {!mac}\n  &Quit                    =QIT {!mac}\n&Edit\n  Undo                     =UND {!browser}\n  Redo                     =RDO {!browser}\n  -                             {!browser}\n  Cut                      =CT  {!browser}\n  Copy                     =CP  {!browser}\n  Paste                    =PT  {!browser}\n  Select All               =SA  {mac}\n  -                             {!mac&&!browser}\n  Find\n    &Find                    =SC\n    &Replace                 =RP\n  Preferences...           =PRF {!mac}\n&View\n  Show Language Bar        =LBR\n  Show Status Bar          =SBR\n  Show Workspace Explorer  =WSE\n  Show Debug               =DBG\n  Line Wrapping in Session =WRP\n  -                             {!browser}\n  Stops                    =TVB\n  Line Numbers             =LN\n  Outline                  =TVO\n  -                             {!browser}\n  Increase Font Size       =ZMI {!browser}\n  Decrease Font Size       =ZMO {!browser}\n  Reset Font Size          =ZMR {!browser}\n  -                             {!browser}\n  Toggle Full Screen            {!browser}\n&Window\n  Close All Windows        =CAW\n&Action\n  Edit                     =ED\n  Trace                    =TC\n  -\n  Clear all trace/stop/monitor =CAM\n  Weak Interrupt           =WI\n  Strong Interrupt         =SI\n&Threads                        {rp21}\n  Pause on Error           =POE\n  Pause all Threads        =PAT\n  Resume all Threads       =RSU\n  Restart all Threads      =MA\n&Help\n  Getting &Started         =https://dyalog.com/introduction.htm\n  -\n  Dyalog &Help             =DHI\n  &Language Elements       =LEL\n  &Documentation Centre    =DOX\n  -\n  Dyalog &Website          =https://dyalog.com/\n  &Email Dyalog            =EMD\n  -\n  Latest &Enhancements     =ENH\n  Read &Me                 =RME\n  &Third Party Licences    =TPL\n  &About                   =ABT {!mac}\n\n# Syntax:\n#   &x   access key, alt+x\n#   =CMD command code; some are special:\n#          LBR WRP WSE render as checkboxes\n#   =http://example.com/  open a URL\n#   {}   conditional display, a boolean expression\n#          operators: && || ! ( )\n#          variables: local browser mac win\n#   -    separator (when alone)\n#   #    comment\n\n# The =PRF (\"Preferences...\") menu item must be present.",
    "pfkeys":"[\"\",\"\",\"\",\"\",\"<LL>(<RL>)\",\"<DB>\",\"\",\"\",\"\",\"\",\"\",\"<LL>(<RL>)\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\",\"\"]",
    "selectedExe":"C:\\Program Files\\Dyalog\\Dyalog APL-64 18.2 Unicode\\dyalog.exe",
    "wse":"1",
    "zoom":"10"
  }

Interpreter:
  Version: 18.2.44968
  Platform: Windows-64
  Edition: Unicode/64
  Date: Dec 13 2021 at 21:22:17

[e9gille]

Fixed in 775b435