slashcommands: Add lenny, small, smaller, flip, clap, owo

Also I did minor optimizations on the performance of message speed by
ensuring that message starts with / before sending it through
slashCommands function

OwO is untested.

patches/slashcommands/README.md

@@ -3,18 +3,26 @@
 This patch adds a message intercept feature with minimal changes to the original code, and adds slash commands.
 
 The following slash commands are supported:
-- /upper
-- /lower
-- /bold
-- /spoiler
-- /me
-- /st (strikethrough)
-- /shrug
-- /tableflip
-- /unflip
-- /fw (fullwidth text)
+- /upper -> Makes text uppercase
+- /lower -> Makes text lowercase
+- /bold -> Makes text bold
+- /spoiler -> Marks your message as a spoiler (same as Discord Desktop)
+- /me -> Display text with emphasis (same as Discord Desktop)
+- /st -> Puts a strikethrough the message
+- /shrug -> Appends ¯\\_(ツ)_/¯  to your message (same as Discord Desktop)
+- /tableflip -> Appends (╯°□°）╯︵ ┻━┻ to your message (same as Discord Desktop)
+- /unflip -> Appends ┬─┬ ノ( ゜-゜ノ) to your message (same as Discord Desktop)
+- /lenny -> Appends ( ͡° ͜ʖ ͡°) to your message
+- /owo -> Myakes tyext reawwy owo-ly, nya :3
 
-Commands like fw can be generated by `textreplacegen.py` provided in this folder.
+Following commands are supported, but create less accessible text (so you should probably ensure that no one around you will be affected before you use them):
+- /fw -> Makes text fullwidth (like "Ｓｅｎｔ　ｆｒｏｍ　ｍｙ　Ａｎｄｒｏｉｄ　Ｄｅｖｉｃｅ")
+- /small -> Makes text smaller (like "ᴛʜɪs")
+- /smaller -> Makes text even smaller (like "ᵗʰvˢ")
+- /flip -> Flips text (like "ʇɥıs")
+- /clap -> Please :clap: clap
+
+Commands like fw can be generated by `textreplacegen.py` or `textreplacegen-array.py` provided in this folder.
 
 #### Available and tested on:
 - 9.0.0