Fix accessible output window, revert Tab/Ctrl+Space, sync readme keys

- output_functions.xml: merge NotepadSmartScroll's Win32/Alien-based
  smart-scroll logic in directly (was a separate plugin). Fixed the
  caret-restore bug: gating the restore on scroll position was wrong
  since the notepad tracks near the bottom during normal reading; now
  gated on whether the caret was literally at the end of the old text.
  Added a jump-to-end-on-focus toggle (Ctrl+Alt+J) with a 0.2s polling
  timer to catch focus landing on the output notepad by any means.
- Reverted the Tab/Ctrl+Space rebinding - removed switch_to_output and
  trigger_word_completion along with their accelerators.
- cosmic rage.MCL: dropped the dangling NotepadSmartScroll.xml include
  (file no longer exists, was reintroduced by an auto-save).
- readme.md: documented the actual current CosmicRage.xml keys (several
  had drifted out of sync - Alt+F12 is now stop-sounds not restart,
  Alt+Delete/Ctrl+S/Ctrl+F1-3/Alt+F3/Alt+Shift+H/F11 were undocumented)
  and added the output_functions.xml accessible-output keybindings,
  which weren't documented at all before.

cosmic rage/worlds/Cosmic Rage/cosmic rage.MCL

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
 <!DOCTYPE muclient>
-<!-- Saved on Sunday, May 25, 2025, 1:55 PM -->
+<!-- Saved on Friday, July 10, 2026, 11:31 PM -->
 <!-- MuClient version 5.06 -->
 <!-- Written by Nick Gammon -->
 <!-- Home Page: http://www.mushclient.com/ -->
@@ -8,13 +8,13 @@
 <world
    muclient_version="5.06"
    world_file_version="15"
-   date_saved="2025-05-25 13:55:57"
+   date_saved="2026-07-10 23:31:00"
 
    auto_say_override_prefix="-"
    auto_say_string="say "
    chat_name="Name-not-set"
    command_stack_character=";"
-   id="d2211ef7d54c4a7bd0cc9ab7"
+   id="7c5e6f4701b5e6f94dbeb6b2"
    input_font_name="Fixedsys"
    mapping_failure="Alas, you cannot go that way."
    name="Cosmic Rage"
@@ -111,7 +111,7 @@
 <triggers
    muclient_version="5.06"
    world_file_version="15"
-   date_saved="2025-05-25 13:55:57"
+   date_saved="2026-07-10 23:31:00"
   >
   <trigger
    enabled="y"
@@ -131,7 +131,7 @@
 <aliases
    muclient_version="5.06"
    world_file_version="15"
-   date_saved="2025-05-25 13:55:57"
+   date_saved="2026-07-10 23:31:00"
   >
 </aliases>
 
@@ -140,7 +140,7 @@
 <timers
    muclient_version="5.06"
    world_file_version="15"
-   date_saved="2025-05-25 13:55:57"
+   date_saved="2026-07-10 23:31:00"
   >
 </timers>
 
@@ -149,7 +149,7 @@
 <macros
    muclient_version="5.06"
    world_file_version="15"
-   date_saved="2025-05-25 13:55:57"
+   date_saved="2026-07-10 23:31:00"
   >
 
   <macro name="up" type="send_now" >
@@ -243,7 +243,7 @@
 <variables
    muclient_version="5.06"
    world_file_version="15"
-   date_saved="2025-05-25 13:55:57"
+   date_saved="2026-07-10 23:31:00"
   >
 </variables>
 
@@ -252,7 +252,7 @@
 <colours
    muclient_version="5.06"
    world_file_version="15"
-   date_saved="2025-05-25 13:55:57"
+   date_saved="2026-07-10 23:31:00"
   >
 
 <ansi>
@@ -309,7 +309,7 @@
 <keypad
    muclient_version="5.06"
    world_file_version="15"
-   date_saved="2025-05-25 13:55:57"
+   date_saved="2026-07-10 23:31:00"
   >
 
   <key name="0" >
@@ -423,7 +423,7 @@
 <printing
    muclient_version="5.06"
    world_file_version="15"
-   date_saved="2025-05-25 13:55:57"
+   date_saved="2026-07-10 23:31:00"
   >
 
 <ansi>
@@ -448,7 +448,6 @@
 </printing>
 
 <!-- plugins -->
-<include name="LuaAudio.xml" plugin="y" />
 <include name="CaptureMudOutput.xml" plugin="y" />
 <include name="Copy_Output.xml" plugin="y" />
 <include name="direction_plugin.xml" plugin="y" />
@@ -457,5 +456,7 @@
 <include name="Omit_Blank_Lines.xml" plugin="y" />
 <include name="Reconnecter.xml" plugin="y" />
 <include name="Repeat_Command.xml" plugin="y" />
+<include name="GagManager.xml" plugin="y" />
+<include name="LuaAudio.xml" plugin="y" />
 <include name="CosmicRage.xml" plugin="y" />
 </muclient>