Fusion icons: fix artifacts in media icons

The fusion svg icons had some unneeded transparent objects which lead to
artifacts during png export/pngcrush optimization. Fix it by removing
the unused objects and re-export the pngs again.

Fixes: QTBUG-122272
Change-Id: I13c670a90e88dd31cb7a066c3565cf30c42e83b5
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit dfe5118f927a45c56d508ffa8662e05c2f99d68d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

src/widgets/styles/images/fusion_closedock.svg

@@ -40,7 +40,7 @@
    inkscape:pageopacity="0"
    inkscape:pageshadow="2"
    inkscape:window-width="1920"
-   inkscape:window-height="918"
+   inkscape:window-height="917"
    id="namedview116"
    showgrid="false"
    inkscape:zoom="63.727999"
@@ -59,13 +59,7 @@
 </style>
 <g
    id="g105">
-		<rect
-   class="st0"
-   width="8"
-   height="8"
-   id="rect103"
-   x="0"
-   y="0" />
+		
 	</g>
 <g
    id="g981"><rect
@@ -76,7 +70,7 @@
      width="1.0760319"
      height="5.9950356"
      id="rect107"
-     style="stroke-width:0.768594;fill:#6c6a67;fill-opacity:1" /><rect
+     style="fill:#6c6a67;fill-opacity:1;stroke-width:0.768594" /><rect
      x="-0.53801638"
      y="-8.6545134"
      transform="rotate(135)"
@@ -84,7 +78,7 @@
      width="1.0760319"
      height="5.9950356"
      id="rect109"
-     style="stroke-width:0.768594;fill:#6c6a67;fill-opacity:1" /><rect
+     style="fill:#6c6a67;fill-opacity:1;stroke-width:0.768594" /><rect
      style="fill:none;stroke:#6c6a67;stroke-width:0.469731;stroke-linejoin:bevel;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
      id="rect151"
      width="6.5302691"

src/widgets/styles/images/fusion_normalizedockup.svg

@@ -40,7 +40,7 @@
    inkscape:pageopacity="0"
    inkscape:pageshadow="2"
    inkscape:window-width="1920"
-   inkscape:window-height="918"
+   inkscape:window-height="917"
    id="namedview116"
    showgrid="false"
    inkscape:zoom="63.727999"
@@ -49,7 +49,7 @@
    inkscape:window-x="0"
    inkscape:window-y="0"
    inkscape:window-maximized="1"
-   inkscape:current-layer="Layer_1"
+   inkscape:current-layer="g1123"
    inkscape:document-rotation="0" />
 <style
    type="text/css"
@@ -57,16 +57,7 @@
 	.st0{fill:none;}
 	.st1{fill:#353637;}
 </style>
-<g
-   id="g105">
-		<rect
-   class="st0"
-   width="8"
-   height="8"
-   id="rect103"
-   x="0"
-   y="0" />
-	</g>
+
 <rect
    style="fill:none;stroke:#6c6a67;stroke-width:0.469731;stroke-linejoin:bevel;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
    id="rect151"

src/widgets/styles/images/fusion_titlebar-min.svg

@@ -23,7 +23,7 @@
    inkscape:export-ydpi="768"><metadata
    id="metadata120"><rdf:RDF><cc:Work
        rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
-         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title></dc:title></cc:Work></rdf:RDF></metadata><defs
+         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title /></cc:Work></rdf:RDF></metadata><defs
    id="defs118">
 	
 	
@@ -40,7 +40,7 @@
    inkscape:pageopacity="0"
    inkscape:pageshadow="2"
    inkscape:window-width="1920"
-   inkscape:window-height="918"
+   inkscape:window-height="917"
    id="namedview116"
    showgrid="false"
    inkscape:zoom="45.0625"
@@ -49,23 +49,15 @@
    inkscape:window-x="0"
    inkscape:window-y="0"
    inkscape:window-maximized="1"
-   inkscape:current-layer="Layer_1" />
+   inkscape:current-layer="Layer_1"
+   inkscape:document-rotation="0" />
 <style
    type="text/css"
    id="style101">
 	.st0{fill:none;}
 	.st1{fill:#353637;}
 </style>
-<g
-   id="g105">
-		<rect
-   class="st0"
-   width="8"
-   height="8"
-   id="rect103"
-   x="0"
-   y="0" />
-	</g>
+
 <rect
    style="fill:#6c6a67;fill-opacity:1;stroke:none;stroke-width:0.529435;stroke-linejoin:bevel;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
    id="rect1157"