Add configuration setting for number of albums per row in mobile view #6474

Job	Run time
0️⃣ Kill previous runs	9s
1️⃣ PHP 8.2 - Syntax errors	44s
2️⃣ PHP 8.2 - PHPStan	1m 19s
2️⃣ PHP 8.2 - Code Style errors	53s
2️⃣ JS front-end / Node 20	41s
2️⃣ PHP tests / 8.3 - mariadb -- Unit,Feature_v2	7m 6s
2️⃣ PHP tests legacy / 8.3 - mariadb -- Feature_v1	10m 33s
2️⃣ PHP tests / 8.3 - postgresql -- Unit,Feature_v2	6m 43s
2️⃣ PHP tests / 8.3 - sqlite -- Unit,Feature_v2	6m 15s
2️⃣ PHP tests legacy / 8.3 - postgresql -- Feature_v1	10m 19s
2️⃣ PHP tests legacy / 8.3 - sqlite -- Feature_v1	10m 12s
3️⃣ PHP dist / 8.2 - mariadb	1m 35s
3️⃣ PHP dist / 8.2 - postgresql	1m 36s
3️⃣ PHP dist / 8.2 - sqlite	1m 31s
4️⃣ Build Artifact	0s
5️⃣ Release	0s
	59m 36s

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