fix(YouTube - Translations): Update translations info

ar - 19 missing strings.
bg-rBG - 64 missing strings.
bn - 255 missing strings.
de-rDE - 317 missing strings.
el-rGR - 32 missing strings.
es-rES - 9 missing strings.
fi-rFI - 256 missing strings.
fr-rFR - 12 missing strings.
hu-rHU - 32 missing strings.
id-rID - 188 missing strings.
in - 188 missing strings.
No missing strings for it-rIT
No missing strings for ja-rJP
ko-rKR - 2 missing strings.
pl-rPL - 9 missing strings.
pt-rBR - 9 missing strings.
ru-rRU - 9 missing strings.
tr-rTR - 32 missing strings.
uk-rUA - 9 missing strings.
vi-rVN - 32 missing strings.
zh-rCN - 215 missing strings.
zh-rTW - 37 missing strings.

To update your language, fork this repo, switch to `dev` branch, go to your language folder `src/main/resources/youtube/translations`, update `strings.xml` by copy-pasting from `missing_strings.xml` and `updated-strings.xml`. Then open pull request (Github will offer you to do that after your changes) to this repo `dev` branch.

src/main/resources/youtube/translations/ko-rKR/missing_strings.xml

@@ -0,0 +1,2 @@
+<string name="revanced_hide_keyword_content_about_summary">Search/Home/Subscription results are filtered to hide content that matches keyword phrases\n\nLimitations\n• Some Shorts may not be hidden\n• Some UI components may not be hidden\n• Searching for a keyword may show no results</string>
+<string name="revanced_hide_keyword_content_feed_title">Enable keyword filter</string>

src/main/resources/youtube/translations/ko-rKR/strings.xml

@@ -99,7 +99,6 @@ DeArrow에 대해 자세히 알아보려면 여기를 누르세요."</string>
  <string name="revanced_hide_keyword_content_feed_summary_off">홈 피드 &amp; 검색 결과 키워드 필터를 비활성화합니다.</string>
  <string name="revanced_hide_keyword_content_feed_summary_on">홈 피드 &amp; 검색 결과 키워드 필터를 활성화합니다.</string>
  <string name="revanced_keyword_filter_summary">키워드 필터를 사용하여 동영상을 숨깁니다.</string>
- <string name="revanced_keyword_filter_title">키워드 필터 활성화하기</string>
  <string name="revanced_custom_playback_speeds_invalid">유효하지 않은 재생 속도 값이므로 기본값으로 재설정합니다.</string>
  <string name="revanced_custom_playback_speeds_summary">사용하고 싶은 동영상 재생 속도 값을 추가 또는 변경할 수 있습니다.</string>
  <string name="revanced_custom_playback_speeds_title">사용자 정의 동영상 재생 속도 편집하기</string>