Fix excess comma in X-Plasma-Runner-Syntaxes values

KConfig interprets this as an empty string, which is not what we want.


(cherry picked from commit 6c517829)

host/plasma-runner-browserhistory.desktop

@@ -86,5 +86,5 @@ X-Plasma-DBusRunner-Service=org.kde.plasma.browser_integration*
 X-Plasma-DBusRunner-Path=/HistoryRunner
 X-Plasma-Request-Actions-Once=true
 X-Plasma-Runner-Min-Letter-Count=3
-X-Plasma-Runner-Syntaxes=:q:,
+X-Plasma-Runner-Syntaxes=:q:
 X-Plasma-Runner-Syntax-Descriptions=Finds websites in the browser history whose title or URL match :q:

host/plasma-runner-browsertabs.desktop

@@ -97,5 +97,5 @@ X-Plasma-DBusRunner-Service=org.kde.plasma.browser_integration*
 X-Plasma-DBusRunner-Path=/TabsRunner
 X-Plasma-Request-Actions-Once=true
 X-Plasma-Runner-Min-Letter-Count=3
-X-Plasma-Runner-Syntaxes=:q:,
+X-Plasma-Runner-Syntaxes=:q:
 X-Plasma-Runner-Syntax-Descriptions=Finds open browser tabs whose title or URL match :q: