Fixes documentation lint errors

vector/src/main/java/im/vector/app/SpaceStateHandler.kt

@@ -53,7 +53,7 @@ interface SpaceStateHandler : DefaultLifecycleObserver {
     )
 
     /**
-     * Gets the Space ID of the space on top of the backstack
+     * Gets the Space ID of the space on top of the backstack.
      *
      * May return null to indicate the All Chats space
      */

vector/src/main/java/im/vector/app/features/settings/VectorPreferences.kt

@@ -1128,10 +1128,10 @@ class VectorPreferences @Inject constructor(
     }
 
     /**
-     * Sets the space backstack that is used for up navigation
-     * This needs to be persisted because navigating up through spaces should work across sessions
+     * Sets the space backstack that is used for up navigation.
+     * This needs to be persisted because navigating up through spaces should work across sessions.
      *
-     * Only the IDs of the spaces are stored
+     * Only the IDs of the spaces are stored.
      */
     fun setSpaceBackstack(spaceBackstack: List<String?>) {
         val spaceIdsJoined = spaceBackstack.takeIf { it.isNotEmpty() }?.joinToString(",")
@@ -1139,7 +1139,7 @@ class VectorPreferences @Inject constructor(
     }
 
     /**
-     * Gets the space backstack used for up navigation
+     * Gets the space backstack used for up navigation.
      */
     fun getSpaceBackstack(): List<String?> {
         val spaceIdsJoined = defaultPrefs.getString(SETTINGS_PERSISTED_SPACE_BACKSTACK, null)

vector/src/test/java/im/vector/app/features/navigation/DefaultNavigatorTest.kt

@@ -48,8 +48,8 @@ internal class DefaultNavigatorTest {
     )
 
     /**
-     * The below tests are by no means all that we want to test in [DefaultNavigator]
-     * Please add relevant tests as you make changes to or related to other functions in the class
+     * The below tests are by no means all that we want to test in [DefaultNavigator].
+     * Please add relevant tests as you make changes to or related to other functions in the class.
      */
 
     @Test