Repository: napari/napari

Issue:
Labels layer controls checkbox labels are cut off
## 🐛 Bug

Currently, the label text for the labels layer control checkboxes is cut off

![Screenshot 2021-07-14 at 18 01 36](https://user-images.githubusercontent.com/1120672/125655277-10df030b-06d4-47f6-a162-6913344707a2.png)

I propose we add a new line so they are not cut off:
![Screenshot 2021-07-14 at 18 03 59](https://user-images.githubusercontent.com/1120672/125655348-8a3ceae0-a25a-457f-84fd-930c6c1b272f.png)



## To Reproduce

Steps to reproduce the behavior:

1. Run nD_labels.py example


## Expected behavior

The labels should not be cut off.

## Environment

```
napari: 0.4.11.dev24+g3baccd57
Platform: Darwin-19.6.0-x86_64-i386-64bit
System: MacOS 10.15.7
Python: 3.7.9 (default, Aug 31 2020, 07:22:35) [Clang 10.0.0 ]
Qt: 5.15.2
PyQt5: 5.15.2
NumPy: 1.20.2
SciPy: 1.6.0
Dask: 2020.12.0
VisPy: 0.6.6

OpenGL:
- GL version: 2.1 INTEL-14.7.17
- MAX_TEXTURE_SIZE: 16384

Screens:
- screen 1: resolution 2560x1440, scale 1.0
- screen 2: resolution 1440x900, scale 2.0

Plugins:
- console: 0.0.3
- napari-properties-viewer: 0.0.1
- scikit-image: 0.4.11.dev24+g3baccd57
- svg: 0.1.4
```
## Additional context


Labels layer controls checkbox labels are cut off
## 🐛 Bug

Currently, the label text for the labels layer control checkboxes is cut off

![Screenshot 2021-07-14 at 18 01 36](https://user-images.githubusercontent.com/1120672/125655277-10df030b-06d4-47f6-a162-6913344707a2.png)

I propose we add a new line so they are not cut off:
![Screenshot 2021-07-14 at 18 03 59](https://user-images.githubusercontent.com/1120672/125655348-8a3ceae0-a25a-457f-84fd-930c6c1b272f.png)



## To Reproduce

Steps to reproduce the behavior:

1. Run nD_labels.py example


## Expected behavior

The labels should not be cut off.

## Environment

```
napari: 0.4.11.dev24+g3baccd57
Platform: Darwin-19.6.0-x86_64-i386-64bit
System: MacOS 10.15.7
Python: 3.7.9 (default, Aug 31 2020, 07:22:35) [Clang 10.0.0 ]
Qt: 5.15.2
PyQt5: 5.15.2
NumPy: 1.20.2
SciPy: 1.6.0
Dask: 2020.12.0
VisPy: 0.6.6

OpenGL:
- GL version: 2.1 INTEL-14.7.17
- MAX_TEXTURE_SIZE: 16384

Screens:
- screen 1: resolution 2560x1440, scale 1.0
- screen 2: resolution 1440x900, scale 2.0

Plugins:
- console: 0.0.3
- napari-properties-viewer: 0.0.1
- scikit-image: 0.4.11.dev24+g3baccd57
- svg: 0.1.4
```
## Additional context




Discussion:

Resolving patch:
diff --git a/napari/_qt/layer_controls/qt_labels_controls.py b/napari/_qt/layer_controls/qt_labels_controls.py
--- a/napari/_qt/layer_controls/qt_labels_controls.py
+++ b/napari/_qt/layer_controls/qt_labels_controls.py
@@ -282,14 +282,14 @@ def __init__(self, layer):
         self.grid_layout.addWidget(QLabel(trans._('contiguous:')), 10, 0, 1, 1)
         self.grid_layout.addWidget(self.contigCheckBox, 10, 1, 1, 1)
         self.grid_layout.addWidget(
-            QLabel(trans._('preserve labels:')), 11, 0, 1, 2
+            QLabel(trans._('preserve\nlabels:')), 11, 0, 1, 2
         )
         self.grid_layout.addWidget(self.preserveLabelsCheckBox, 11, 1, 1, 1)
         self.grid_layout.addWidget(
-            QLabel(trans._('show selected:')), 11, 2, 1, 1
+            QLabel(trans._('show\nselected:')), 11, 2, 1, 1
         )
         self.grid_layout.addWidget(self.selectedColorCheckbox, 11, 3, 1, 1)
-        self.grid_layout.setRowStretch(11, 1)
+        self.grid_layout.setRowStretch(12, 1)
         self.grid_layout.setColumnStretch(1, 1)
         self.grid_layout.setSpacing(4)
 


Test patch: