fix(alerts): Fix EAP alert filter bar to behave more like explore (#81946)

Updates the search bar in the EAP Alert edit page to behave more like
explore:
- User must explicitly save changes on the search (hitting enter) for
updates to take effect. Same as explore.
- Removed onBlur handler

This also fixes an issue where the chart visualization updates, but
saving the alert rule doesn't actually save the changed filter because
it was not actually committed

Author: edwardgou-sentry

static/app/views/alerts/rules/metric/ruleConditionsForm.tsx

@@ -781,16 +781,12 @@ class RuleConditionsForm extends PureComponent<Props, State> {
                           <EAPSpanSearchQueryBuilder
                             numberTags={tags?.number ?? {}}
                             stringTags={tags?.string ?? {}}
-                            initialQuery={initialData?.query ?? ''}
+                            initialQuery={value ?? ''}
                             searchSource="alerts"
                             onSearch={(query, {parsedQuery}) => {
                               onFilterSearch(query, parsedQuery);
                               onChange(query, {});
                             }}
-                            onBlur={(query, {parsedQuery}) => {
-                              onFilterSearch(query, parsedQuery);
-                              onBlur(query);
-                            }}
                             supportedAggregates={ALLOWED_EXPLORE_VISUALIZE_AGGREGATES}
                             projects={[parseInt(project.id, 10)]}
                           />