remove truncation of blockspeed to more accurately estimate

src/modules/[chain]/block/[height].vue

@@ -38,7 +38,7 @@ const remainingBlocks = computed(() => {
 })
 
 const estimateTime = computed(() => {
-  const seconds = remainingBlocks.value * Number((store.blocktime / 1000).toFixed()) * 1000
+  const seconds = remainingBlocks.value * store.blocktime
   return seconds
 })