Fix: Stable update info polling (#872)

* adjusted sleep between polls to always sleep at least 2s

* fixed tooltip formatting when no updates available

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Co-authored-by: Mara <mara.dawn69@gmail.com>

src/components/bar/modules/updates/index.tsx

@@ -34,7 +34,7 @@ const processUpdateCount = (updateCount: string): string => {
 
 const processUpdateTooltip = (updateTooltip: string, updateCount: Variable<string>): string => {
     const defaultTooltip = updateCount.get() + ' updates available';
-    if (!extendedTooltip.get()) return defaultTooltip;
+    if (!extendedTooltip.get() || !updateTooltip) return defaultTooltip;
     return defaultTooltip + '\n\n' + updateTooltip;
 };