Introduce lint configuration and enable checks

Supress missing translation errors as they are done by volunteers

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/build.gradle.kts

@@ -88,13 +88,7 @@ configure<ApplicationExtension> {
     }
 
     lint {
-        checkReleaseBuilds = false
-        // Or, if you prefer, you can continue to check for errors in release builds,
-        // but continue the build even when errors are found:
-        abortOnError = false
-        // suppress false warning ("Resource IDs will be non-final in Android Gradle Plugin version
-        // 5.0, avoid using them in switch case statements"), which affects only library projects
-        disable += "NonConstantResourceId"
+        lintConfig = file("lint.xml")
     }
 
     compileOptions {

app/lint.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ SPDX-FileCopyrightText: 2026 NewPipe e.V. <https://newpipe-ev.de>
+  ~ SPDX-License-Identifier: GPL-3.0-or-later
+  -->
+<lint>
+    <issue id="MissingTranslation" severity="ignore" />
+</lint>