Minor clean up of Gradle build scripts

[ahmedre]

No description provided.

[github-actions]

OLD: app-madani-debug.apk (signature: V1, V2)
NEW: app-madani-debug.apk (signature: V1, V2)

          │          compressed          │         uncompressed         
          ├───────────┬───────────┬──────┼───────────┬───────────┬──────
 APK      │ old       │ new       │ diff │ old       │ new       │ diff 
──────────┼───────────┼───────────┼──────┼───────────┼───────────┼──────
      dex │  20.2 MiB │  20.2 MiB │  0 B │  65.1 MiB │  65.1 MiB │  0 B 
     arsc │   2.2 MiB │   2.2 MiB │  0 B │   2.2 MiB │   2.2 MiB │  0 B 
 manifest │   5.6 KiB │   5.6 KiB │  0 B │  27.1 KiB │  27.1 KiB │  0 B 
      res │   1.6 MiB │   1.6 MiB │  0 B │   1.8 MiB │   1.8 MiB │  0 B 
    asset │ 404.2 KiB │ 404.2 KiB │  0 B │ 678.6 KiB │ 678.6 KiB │  0 B 
    other │ 188.6 KiB │ 188.6 KiB │ +1 B │ 385.6 KiB │ 385.6 KiB │  0 B 
──────────┼───────────┼───────────┼──────┼───────────┼───────────┼──────
    total │  24.6 MiB │  24.6 MiB │ +1 B │  70.2 MiB │  70.2 MiB │  0 B