Clean up some unnecessary bits

- Remove analytics/crash reporting
- Remove app update check
- Remove F-Droid warning
- Remove Discord references

build.gradle.kts

@@ -6,7 +6,6 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinJvmCompile
 buildscript {
     dependencies {
         classpath(libs.android.shortcut.gradle)
-        classpath(libs.google.services.gradle)
         classpath(libs.aboutLibraries.gradle)
         classpath(libs.sqldelight.gradle)
         classpath(libs.moko.gradle)