Move plugins to Sol (#5622)

Co-authored-by: Nerixyz <nerixdev@outlook.de>
Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

docs/wip-plugins.md

@@ -171,7 +171,7 @@ function cmd_words(ctx)
     -- ctx contains:
     -- words - table of words supplied to the command including the trigger
     -- channel - the channel the command is being run in
-    channel:add_system_message("Words are: " .. table.concat(ctx.words, " "))
+    ctx.channel:add_system_message("Words are: " .. table.concat(ctx.words, " "))
 end
 
 c2.register_command("/words", cmd_words)
@@ -183,7 +183,7 @@ Limitations/known issues:
   rebuilding the window content caused by reloading another plugin will solve this.
 - Spaces in command names aren't handled very well (https://github.com/Chatterino/chatterino2/issues/1517).
 
-#### `register_callback("CompletionRequested", handler)`
+#### `register_callback(c2.EventType.CompletionRequested, handler)`
 
 Registers a callback (`handler`) to process completions. The callback takes a single table with the following entries:
 
@@ -207,7 +207,7 @@ function string.startswith(s, other)
 end
 
 c2.register_callback(
-    "CompletionRequested",
+    c2.EventType.CompletionRequested,
     function(event)
         if ("!join"):startswith(event.query) then
             ---@type CompletionList
@@ -219,15 +219,6 @@ c2.register_callback(
 )
 ```
 
-#### `Platform` enum
-
-This table describes platforms that can be accessed. Chatterino supports IRC
-however plugins do not yet have explicit access to get IRC channels objects.
-The values behind the names may change, do not count on them. It has the
-following keys:
-
-- `Twitch`
-
 #### `ChannelType` enum
 
 This table describes channel types Chatterino supports. The values behind the
@@ -260,9 +251,9 @@ used on non-Twitch channels. Special channels while marked as
 is an actual Twitch chatroom use `Channel:get_type()` instead of
 `Channel:is_twitch_channel()`.
 
-##### `Channel:by_name(name, platform)`
+##### `Channel:by_name(name)`
 
-Finds a channel given by `name` on `platform` (see [`Platform` enum](#Platform-enum)). Returns the channel or `nil` if not open.
+Finds a channel given by `name`. Returns the channel or `nil` if not open.
 
 Some miscellaneous channels are marked as if they are specifically Twitch channels:
 
@@ -275,7 +266,7 @@ Some miscellaneous channels are marked as if they are specifically Twitch channe
 Example:
 
 ```lua
-local pajladas = c2.Channel.by_name("pajlada", c2.Platform.Twitch)
+local pajladas = c2.Channel.by_name("pajlada")
 ```
 
 ##### `Channel:by_twitch_id(id)`
@@ -363,7 +354,7 @@ pajladas:add_system_message("Hello, world!")
 
 Returns `true` if the channel is a Twitch channel, that is its type name has
 the `Twitch` prefix. This returns `true` for special channels like Mentions.
-You might want `Channel:get_type() == "Twitch"` if you want to use
+You might want `Channel:get_type() == c2.ChannelType.Twitch` if you want to use
 Twitch-specific functions.
 
 ##### `Channel:get_twitch_id()`