manager: Updated colors and styles

- Adapted from reference style

Co-authored-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>
Co-authored-by: Der_Googler <54764558+DerGoogler@users.noreply.github.com>
Co-authored-by: rifsxd <rifat.44.azad.rifs@gmail.com>
Signed-off-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>

manager/app/src/main/java/com/sukisu/ultra/Kernels.kt

@@ -8,24 +8,13 @@ import android.system.Os
  */
 
 data class KernelVersion(val major: Int, val patchLevel: Int, val subLevel: Int) {
-    override fun toString(): String {
-        return "$major.$patchLevel.$subLevel"
-    }
-
-    fun isGKI(): Boolean {
-
-        // kernel 6.x
-        if (major > 5) {
-            return true
-        }
-
-        // kernel 5.10.x
-        if (major == 5) {
-            return patchLevel >= 10
-        }
-
-        return false
+    override fun toString(): String = "$major.$patchLevel.$subLevel"
+    fun isGKI(): Boolean = when {
+        major > 5 -> true
+        major == 5 && patchLevel >= 10 -> true
+        else -> false
     }
+    fun isGKI1(): Boolean = (major == 4 && patchLevel >= 19) || (major == 5 && patchLevel < 10)
 }
 
 fun parseKernelVersion(version: String): KernelVersion {