Gui: Stylesheet fix applied to all shipped stylesheets [skip ci]

Fixes #0004559

src/Gui/Stylesheets/Behave-dark.qss

@@ -1909,6 +1909,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #232932, stop:1 #646464);
     border: 1px solid #232932;
     border-bottom-color: #434D5B; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {

src/Gui/Stylesheets/Dark-blue.qss

@@ -1876,6 +1876,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #6e6e6e, stop:1 #646464);
     border: 1px solid #5a5a5a;
     border-bottom-color: #505050; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {

src/Gui/Stylesheets/Dark-contrast.qss

@@ -1897,6 +1897,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #444444, stop:1 #3c3c3c);
     border: 1px solid #424242;
     border-bottom-color: #333333; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {

src/Gui/Stylesheets/Dark-green.qss

@@ -1876,6 +1876,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #6e6e6e, stop:1 #646464);
     border: 1px solid #5a5a5a;
     border-bottom-color: #505050; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {

src/Gui/Stylesheets/Dark-orange.qss

@@ -1876,6 +1876,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #6e6e6e, stop:1 #646464);
     border: 1px solid #5a5a5a;
     border-bottom-color: #505050; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {

src/Gui/Stylesheets/Darker-blue.qss

@@ -1897,6 +1897,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #444444, stop:1 #3c3c3c);
     border: 1px solid #424242;
     border-bottom-color: #333333; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {

src/Gui/Stylesheets/Darker-green.qss

@@ -1897,6 +1897,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #444444, stop:1 #3c3c3c);
     border: 1px solid #424242;
     border-bottom-color: #333333; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {

src/Gui/Stylesheets/Darker-orange.qss

@@ -1897,6 +1897,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #444444, stop:1 #3c3c3c);
     border: 1px solid #424242;
     border-bottom-color: #333333; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {

src/Gui/Stylesheets/Light-blue.qss

@@ -1877,6 +1877,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #f5f5f5, stop:1 #e6e6e6);
     border: 1px solid #d2d2d2;
     border-bottom-color: #c3c3c3; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {

src/Gui/Stylesheets/Light-green.qss

@@ -1877,6 +1877,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #f5f5f5, stop:1 #e6e6e6);
     border: 1px solid #d2d2d2;
     border-bottom-color: #c3c3c3; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {

src/Gui/Stylesheets/Light-orange.qss

@@ -1877,6 +1877,7 @@ QToolBar > QPushButton:!checked {
     background-color: qlineargradient(spread:pad, x1:0, y1:0.3, x2:0, y2:1, stop:0 #f5f5f5, stop:1 #e6e6e6);
     border: 1px solid #d2d2d2;
     border-bottom-color: #c3c3c3; /* simulates shadow under the button */
+    text-align: left; /* bug fix #4559 */
 }
 
 QToolBar > QPushButton:checked:hover {