replace strings before build

.github/workflows/iceraven_build.yml

@@ -34,6 +34,11 @@ jobs:
       - name: Create version name
         run: echo "VERSION_NAME=$(git describe --tags HEAD)" >> $GITHUB_ENV
 
+      - name: Relpace strings
+        run: |
+          sed -i 's/Firefox/Iceraven/g' app/src/*/res/values*/*strings.xml
+          sed -i '/about_content/s/Mozilla/@forkmaintainers/' app/src/*/res/values*/*strings.xml
+
       - name: Build forkRelease variant of app
         uses: gradle/gradle-build-action@v2
         env: