Small layout improvements

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

@@ -340,7 +340,7 @@
             android:layout_marginTop="12dp"
             android:layout_marginEnd="12dp"
             android:text="@string/title_send_encryption"
-            android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
             app:layout_constraintEnd_toStartOf="@id/ibEncryption"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/tvReceiptHint" />
@@ -349,7 +349,6 @@
             android:id="@+id/spEncrypt"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:layout_marginTop="6dp"
             android:layout_marginEnd="12dp"
             android:entries="@array/encryptNames"
             app:layout_constraintEnd_toStartOf="@id/ibEncryption"
@@ -375,7 +374,7 @@
             android:layout_marginTop="12dp"
             android:layout_marginEnd="12dp"
             android:text="@string/title_send_priority"
-            android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
             app:layout_constraintEnd_toStartOf="@id/ibEncryption"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/spEncrypt" />
@@ -384,7 +383,6 @@
             android:id="@+id/spPriority"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:layout_marginTop="6dp"
             android:layout_marginEnd="12dp"
             android:entries="@array/priorityNames"
             app:layout_constraintEnd_toStartOf="@id/ibEncryption"
@@ -398,7 +396,7 @@
             android:layout_marginTop="12dp"
             android:layout_marginEnd="12dp"
             android:text="@string/title_send_sensitivity"
-            android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
             app:layout_constraintEnd_toStartOf="@id/ibEncryption"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/spPriority" />
@@ -407,7 +405,6 @@
             android:id="@+id/spSensitivity"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:layout_marginTop="6dp"
             android:layout_marginEnd="12dp"
             android:entries="@array/sensitivityNames"
             app:layout_constraintEnd_toStartOf="@id/ibEncryption"
@@ -421,7 +418,7 @@
             android:layout_marginTop="12dp"
             android:layout_marginEnd="12dp"
             android:text="@string/title_send_at"
-            android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
             app:layout_constraintEnd_toStartOf="@+id/ibSendAt"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/spSensitivity" />
@@ -430,7 +427,7 @@
             android:id="@+id/tvSendAt"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:layout_marginTop="6dp"
+            android:layout_marginStart="6dp"
             android:layout_marginEnd="12dp"
             android:gravity="center_vertical"
             android:text="now"