Switch to convention plugins for build logic

### Description

At the moment we have a lot of repeating config for our modules (e.g. setting up `android {}` DSL or setting up static code analysis, etc.), we could use Gradle's [convention plugins](https://docs.gradle.org/current/samples/sample_convention_plugins.html) to centralize this logic, so the configuration could happen by just applying one of our plugins.

首先檢視重複的模組設定，包括 android DSL 和靜態程式碼分析設定，同時參閱 Gradle 的 convention plugins 文件。完成的標準是將共用設定集中管理，讓模組可以套用專案中的某個 plugins，而不是重複該設定。

由索引模型根據 Issue 內容生成。