Adjust icon spacing in path header component

Previously, icon margins simply expanded and contracted as the Git
side panel expanded and contracted, leading to unnatural icon
alignment. This specifies fixed icon margins and ensures that the
icons remain left aligned as the side panel is resized.

Author: kgryte

src/style/PathHeaderStyle.ts

@@ -30,7 +30,7 @@ export const repoRefreshStyle = style({
   boxSizing: 'border-box',
   outline: 'none',
   padding: '0px 6px',
-  margin: 'auto 5px auto auto',
+  margin: 'auto 5px auto 5px',
   height: '24px',
 
   $nest: {
@@ -54,7 +54,7 @@ export const gitPushStyle = style({
   boxSizing: 'border-box',
   outline: 'none',
   padding: '0px 6px',
-  margin: 'auto 5px auto auto',
+  margin: 'auto 5px auto 5px',
   height: '24px',
 
   $nest: {