(en/kickassanime) Adding kaa.mx

[Arkai1]

Checklist:

• Updated extVersionCode value in build.gradle for individual extensions
• Updated overrideVersionCode or baseVersionCode as needed for all multisrc extensions
• Referenced all related issues in the PR body (e.g. "Closes #xyz")
• Added the isNsfw = true flag in build.gradle when appropriate
• Have not changed source names
• Have explicitly kept the id if a source's name or language were changed
• Have tested the modifications by compiling and running the extension through Android Studio
• Have removed web_hi_res_512.png when adding a new extension
• Have made sure all the icons are in png format

[Arkai1]

Close #812

[cuong-tran]

Done #812

put "Close #812" in the PR's first comment

[almightyhak]

"Have tested the modifications by compiling and running the extension through Android Studio"
please actually test them before submitting a pull request

[Arkai1]

"Have tested the modifications by compiling and running the extension through Android Studio" please actually test them before submitting a pull request

Done