Multilang: add missing Chinese e2e toggle translations (#25656)

* japanese e2e toggle

* chinese (simp)

* chinese (trad)

* OOPS

* Mention experimental in details

* Also in traditional

* Exp.

* suggestions

* Apply suggestions from code review

Co-authored-by: ZwX1616 <zwx1616@gmail.com>

* add back removed translations from merge

* Update selfdrive/ui/translations/main_zh-CHS.ts

Co-authored-by: Shane Smiskol <shane@smiskol.com>
Co-authored-by: ZwX1616 <zwx1616@gmail.com>

selfdrive/ui/translations/main_zh-CHS.ts

@@ -1167,7 +1167,7 @@ location set</source>
     <message>
         <location line="+11"/>
         <source>🌮 End-to-end longitudinal (extremely alpha) 🌮</source>
-        <translation type="unfinished"></translation>
+        <translation>🌮 端对端纵向控制（实验性功能） 🌮</translation>
     </message>
     <message>
         <location line="+6"/>
@@ -1182,7 +1182,7 @@ location set</source>
     <message>
         <location line="+42"/>
         <source>Let the driving model control the gas and brakes. openpilot will drive as it thinks a human would. Super experimental.</source>
-        <translation type="unfinished"></translation>
+        <translation>让驾驶模型直接控制油门和刹车，openpilot将会模仿人类司机的驾驶方式。该功能仍非常实验性。</translation>
     </message>
     <message>
         <location line="-55"/>

selfdrive/ui/translations/main_zh-CHT.ts

@@ -1169,7 +1169,7 @@ location set</source>
     <message>
         <location line="+11"/>
         <source>🌮 End-to-end longitudinal (extremely alpha) 🌮</source>
-        <translation type="unfinished"></translation>
+        <translation>🌮 端對端縱向控制（實驗性功能） 🌮</translation>
     </message>
     <message>
         <location line="+6"/>
@@ -1184,7 +1184,7 @@ location set</source>
     <message>
         <location line="+42"/>
         <source>Let the driving model control the gas and brakes. openpilot will drive as it thinks a human would. Super experimental.</source>
-        <translation type="unfinished"></translation>
+        <translation>讓駕駛模型直接控製油門和剎車，openpilot將會模仿人類司機的駕駛方式。該功能仍非常實驗性。</translation>
     </message>
     <message>
         <location line="-55"/>