Update command docstrings and localization keys

Improved docstrings for 'play' and 'search' commands in basic.py for clarity. Updated localization keys and translations in es-419.json, es-ES.json, and zh-CN.json to fix punctuation, naming consistency, and minor translation errors.

local_langs/es-419.json

@@ -4,7 +4,7 @@
     "channel": "canal",
     "Provide a channel to connect.": "Proporciona un canal para conectar.",
     "play": "reproducir",
-    "Loads your input into the queue": "Carga tu entrada en la cola.",
+    "Loads your input into the queue.": "Carga tu entrada en la cola.",
     "Searches your query and displays the results.": "Busca tu consulta y muestra los resultados.",
     "query": "consulta",
     "Input a query or a searchable link.": "Ingresa una consulta o un enlace de búsqueda.",
@@ -93,7 +93,7 @@
     "title": "titulo",
     "Searches for your query and displays the reutned lyrics.": "Busca tu consulta y muestra la letra encontrada.",
     "artist": "artista",
-    "swapdj": "cambiar_dj",
+    "swapdj": "cambiardj",
     "Transfer dj to another.": "Transfiere el DJ a otro.",
     "Choose a member to transfer the dj role.": "Elige un miembro para transferir el rol de DJ.",
     "autoplay": "reproduccion_auto",

local_langs/es-ES.json

@@ -93,7 +93,7 @@
     "title": "titulo",
     "Searches for your query and displays the reutned lyrics.": "Busca tu consulta y muestra la letra encontrada.",
     "artist": "artista",
-    "swapdj": "cambiar_dj",
+    "swapdj": "cambiardj",
     "Transfer dj to another.": "Transfiere el DJ a otro.",
     "Choose a member to transfer the dj role.": "Elige un miembro para transferir el rol de DJ.",
     "autoplay": "reproduccion_auto",

local_langs/zh-CN.json

@@ -93,7 +93,7 @@
     "title": "标题",
     "Searches for your query and displays the reutned lyrics.": "搜索您的查询并显示返回的歌词。",
     "artist": "歌手",
-    "swapdj": "转移DJ",
+    "swapdj": "转移dj",
     "Transfer dj to another.": "将 DJ 转移给其他人。",
     "Choose a member to transfer the dj role.": "选择要转移 DJ 身份的成员。",
     "autoplay": "自动播放",
@@ -165,7 +165,7 @@
     "speed": "速度",
     "Sets the player's playback speed": "设置播放器播放速度。",
     "The value to set the speed to. Default is `1.0`": "设置速度值，默认 `1.0`。",
-    "karaoke": "卡拉OK",
+    "karaoke": "卡拉ok",
     "Uses equalization to eliminate part of a band, usually targeting vocals.": "使用均衡器消除部分频带，通常针对人声。",
     "level": "级别",
     "The level of the karaoke. Default is `1.0`": "卡拉OK级别，默认 `1.0`。",