fix: correct log response key to 'lines' and convert refresh text to icon button in LogsScreen

app/src/main/java/com/m57/hermescontrol/data/model/LogResponse.kt

@@ -1,5 +1,6 @@
 package com.m57.hermescontrol.data.model
 
 data class LogResponse(
-    val logs: List<String>,
+    val lines: List<String>? = null,
+    val logs: List<String>? = null,
 )