Alerting text: rename `Affected alert rule instances` (#98369)

* Alerting text: rename `Affected alert rule instances`

* Update docs/sources/alerting/configure-notifications/create-silence.md

Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>

---------

Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>

docs/sources/alerting/configure-notifications/create-silence.md

@@ -78,7 +78,7 @@ To add a silence, complete the following steps.
 
    {{< docs/shared lookup="alerts/how_label_matching_works.md" source="grafana" version="<GRAFANA_VERSION>" >}}
 
-   Any matching alerts (in the firing state only) will show under **Affected alert rule instances**.
+   Any matching alerts (in the firing state only) display under **Affected alert instances**.
 
 1. In **Comment**, add details about the silence.
 1. Click **Submit**.

public/app/features/alerting/unified/components/silences/SilencedInstancesPreview.tsx

@@ -80,7 +80,7 @@ export const SilencedInstancesPreview = ({ amSourceName, matchers: inputMatchers
   return (
     <div>
       <h4 className={styles.title}>
-        <Trans i18nKey="alerting.silences.affected-instances">Affected alert rule instances</Trans>
+        <Trans i18nKey="alerting.silences.affected-instances">Affected alert instances</Trans>
         <Tooltip
           content={
             <div>

public/locales/en-US/grafana.json

@@ -533,7 +533,7 @@
       "save-query": "Save current search"
     },
     "silences": {
-      "affected-instances": "Affected alert rule instances",
+      "affected-instances": "Affected alert instances",
       "only-firing-instances": "Only alert instances in the firing state are displayed.",
       "preview-affected-instances": "Preview the alert instances affected by this silence."
     },

public/locales/pseudo-LOCALE/grafana.json

@@ -533,7 +533,7 @@
       "save-query": "Ŝävę čūřřęʼnŧ şęäřčĥ"
     },
     "silences": {
-      "affected-instances": "Ńƒęčŧęđ äľęřŧ řūľę įʼnşŧäʼnčęş",
+      "affected-instances": "Ńƒęčŧęđ äľęřŧ įʼnşŧäʼnčęş",
       "only-firing-instances": "Øʼnľy äľęřŧ įʼnşŧäʼnčęş įʼn ŧĥę ƒįřįʼnģ şŧäŧę äřę đįşpľäyęđ.",
       "preview-affected-instances": "Přęvįęŵ ŧĥę äľęřŧ įʼnşŧäʼnčęş äƒƒęčŧęđ þy ŧĥįş şįľęʼnčę."
     },