Stretch now playing seekbar to entire width until timecodes

- Applies minor changes from PR at: https://github.com/apognu/otter/pull/102
- Credits go to: https://github.com/luuknieuwdorp

app/src/main/res/layout-land/partial_now_playing.xml

@@ -168,6 +168,9 @@
             android:max="100"
             android:progressBackgroundTint="#cacaca"
             android:progressTint="@color/controlForeground"
+            android:thumbOffset="3dp"
+            android:paddingStart="0dp"
+            android:paddingEnd="0dp"
             android:thumbTint="@color/controlForeground" />
 
         <LinearLayout

app/src/main/res/layout/partial_now_playing.xml

@@ -196,8 +196,11 @@
                 android:layout_height="wrap_content"
                 android:layout_marginTop="16dp"
                 android:max="100"
+                android:paddingStart="0dp"
+                android:paddingEnd="0dp"
                 android:progressBackgroundTint="#cacaca"
                 android:progressTint="@color/controlForeground"
+                android:thumbOffset="3dp"
                 android:thumbTint="@color/controlForeground" />
 
             <LinearLayout