Improve Japanese translations (#25226)

* Minor Japanese improvements

* fix

rm

Co-authored-by: PONPC <fuzitanirenti@yahoo.co.jp>
old-commit-hash: 180c2abdd9a99f0851a1bc0b3dc2a4f3ab55ddf8

selfdrive/ui/translations/main_ja.qm

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:c1f2aa099fffd095a8158ffaf51cc6d740b130c8c8eeba41e9bf8899eec977bc
-size 20204
+oid sha256:8cb8a9918fefe9bb2d047fd4b81063747857d5740f682ee98d8b95ba68a095ac
+size 20202

selfdrive/ui/translations/main_ja.ts

@@ -406,7 +406,7 @@
     <message>
         <location filename="../qt/maps/map_settings.cc" line="95"/>
         <source>Try the Navigation Beta</source>
-        <translation>ベータ版ﾅﾋﾞｹﾞｰｼｮﾝを試し</translation>
+        <translation>β版ﾅﾋﾞｹﾞｰｼｮﾝを試す</translation>
     </message>
     <message>
         <location filename="../qt/maps/map_settings.cc" line="107"/>
@@ -567,7 +567,7 @@ location set</source>
     <message>
         <location filename="../qt/widgets/prime.cc" line="192"/>
         <source>Become a comma prime member at connect.comma.ai</source>
-        <translation>connect.comma.ai でプライム会員に登録できます</translation>
+        <translation>connect.comma.ai でﾌﾟﾗｲﾑ会員に登録できます</translation>
     </message>
     <message>
         <location filename="../qt/widgets/prime.cc" line="199"/>