remove radialGradient

The radialGradient was used for the eye.
The eye looks better with it, but Qt does not support it.

src/install.py

@@ -1,6 +1,5 @@
 import sys
 import textwrap
-from os import PathLike
 from pathlib import Path
 
 
@@ -61,10 +60,6 @@ def _linux_install_icon_to_path(path: Path):
 			<stop offset="0%" style="stop-color:#8caec7"/>
 			<stop offset="100%" style="stop-color:#6289a3"/>
 		</linearGradient>
-		<radialGradient id="rg1">
-			<stop offset="0%" stop-color="white"/>
-			<stop offset="100%" stop-color="black"/>
-		</radialGradient>
 	</defs>
 	<rect x="8" y="8" width="112" height="112" style="fill:url(#fg1)" rx="10"/>
 	<path style="fill:black"
@@ -81,8 +76,6 @@ def _linux_install_icon_to_path(path: Path):
 	z"/>
 	<rect x="8" y="8" width="112" height="112"
 		  style="fill:none; stroke:url(#bg1); stroke-width:14" rx="10"/>
-
-	<circle cx="65" cy="40" r="6" fill="url(#rg1)"/>
 	<circle cx="65" cy="40" r="3" fill="white"/>
 </svg>""")
     path.write_text(svg, "utf8")