doc/api: add variable "_chat_focused_line" in function hook_focus

doc/en/weechat_plugin_api.en.adoc

@@ -12996,6 +12996,9 @@ Content of hashtable sent to callback (keys and values are of type "string"):
 | _chat_line_message | Message of line.
 | "Hello world!" | ""
 
+| _chat_focused_line | Line at (x,y) _(WeeChat ≥ 4.0.0)_.
+| "Hello world!" | ""
+
 | _chat_word | Word at (x,y).
 | "Hello" | ""
 

doc/fr/weechat_plugin_api.fr.adoc

@@ -13290,6 +13290,9 @@ valeurs sont de type "string") :
 | _chat_line_message | Message de la ligne.
 | "Hello world!" | ""
 
+| _chat_focused_line | Ligne à la position (x,y) _(WeeChat ≥ 4.0.0)_.
+| "Hello world!" | ""
+
 | _chat_word | Mot à la position (x,y).
 | "Hello" | ""
 

doc/it/weechat_plugin_api.it.adoc

@@ -13580,6 +13580,10 @@ Contenuto della tabella hash inviata alla callback (tasti e valori sono di tipo
 | _chat_line_message | Messaggio della riga.
 | "Hello world!" | ""
 
+// TRANSLATION MISSING
+| _chat_focused_line | Line at (x,y) _(WeeChat ≥ 4.0.0)_.
+| "Hello world!" | ""
+
 | _chat_word | Parola a (x,y).
 | "Hello" | ""
 

doc/ja/weechat_plugin_api.ja.adoc

@@ -13142,6 +13142,10 @@ info を使う前にエリアが一致していることを確認して下さい
 | _chat_line_message | 行のメッセージ部分
 | "Hello world!" | ""
 
+// TRANSLATION MISSING
+| _chat_focused_line | Line at (x,y) _(WeeChat ≥ 4.0.0)_.
+| "Hello world!" | ""
+
 | _chat_word | (x,y) の位置にある単語
 | "Hello" | ""
 

doc/sr/weechat_plugin_api.sr.adoc

@@ -12562,6 +12562,10 @@ struct t_hook *weechat_hook_focus (const char *area,
 | _chat_line_message | Порука линије.
 | "Hello world!" | ""
 
+// TRANSLATION MISSING
+| _chat_focused_line | Line at (x,y) _(WeeChat ≥ 4.0.0)_.
+| "Hello world!" | ""
+
 | _chat_word | Реч на (x,y).
 | "Здраво" | ""