RI-6371 clean up connect to instance function, fix loading style

Author: kchepikava

redisinsight/ui/src/components/instance-header/components/instances-navigation-popover/components/instances-list/InstancesList.tsx

@@ -37,12 +37,6 @@ const InstancesList = ({
   const instances = selectedTab === InstancesTabs.Databases ? filteredDbInstances : filteredRdiInstances
 
   const connectToInstance = (id = '') => {
-    dispatch(resetKeys())
-    dispatch(resetRedisearchKeysData())
-    dispatch(resetCliSettingsAction())
-    dispatch(resetCliHelperSettings())
-    dispatch(setAppContextInitialState())
-
     dispatch(setConnectedInstanceId(id))
     setLoading(false)
     history.push(Pages.browser(id))
@@ -110,7 +104,12 @@ const InstancesList = ({
             key={instance.id}
             label={(
               <EuiText style={{ display: 'flex', alignItems: 'center' }}>
-                {loading && instance?.id === selected && <EuiLoadingSpinner size="s" style={{ marginRight: '8px' }} />}
+                {loading && instance?.id === selected && (
+                <EuiLoadingSpinner
+                  size="s"
+                  className={styles.loading}
+                />
+                )}
                 {instance.name}
                 {' '}
                 {getDbIndex(instance.db)}

redisinsight/ui/src/components/instance-header/components/instances-navigation-popover/styles.module.scss

@@ -70,6 +70,13 @@
     line-height: 16.8px !important;
     color: var(--euiTextSubduedColor) !important;
   }
+
+  .loading {
+    margin-right: 8px;
+    border-color: var(--separatorDropdownColor) !important;
+
+    border-top-color: var(--euiColorGhost) !important;
+  }
 }
 
 .listContainer :global(.euiListGroupItem-isActive), :global(.euiListGroupItem:hover) {

redisinsight/ui/src/pages/home/components/database-list-component/DatabasesListWrapper.tsx

@@ -135,16 +135,6 @@ const DatabasesListWrapper = (props: Props) => {
   }
 
   const connectToInstance = (id = '') => {
-    // reset rdi context
-    dispatch(resetRdiContext())
-
-    if (contextInstanceId && contextInstanceId !== id) {
-      dispatch(resetKeys())
-      dispatch(resetRedisearchKeysData())
-      dispatch(resetCliSettingsAction())
-      dispatch(resetCliHelperSettings())
-      dispatch(setAppContextInitialState())
-    }
     dispatch(setConnectedInstanceId(id))
 
     history.push(Pages.browser(id))