- client: Don't hide version string when built-in auto-update is disabled: Merge pull request #628 in DNS/adguard-home from fix/1726 to master

Close #1726

Squashed commit of the following:

commit 3eac793c7c05fbb599f510fd8cae560011b7f5ca
Merge: aebfaf61 16a6aada
Author: ArtemBaskal <a.baskal@adguard.com>
Date:   Wed May 27 14:14:58 2020 +0300

    Merge branch 'master' into fix/1726

commit aebfaf610113f83027feb959ed87adef1b2db255
Author: ArtemBaskal <a.baskal@adguard.com>
Date:   Wed May 27 12:54:30 2020 +0300

    Always show version but hide update button when program is launched with "--no-check-update" flag

commit 1d4ee05959379420fee9730b3bf8ba737852e96e
Author: ArtemBaskal <a.baskal@adguard.com>
Date:   Wed May 27 11:59:10 2020 +0300

    Use classnames lib

commit 7003a7064c9625fab513dc02222faff4a340393f
Author: ArtemBaskal <a.baskal@adguard.com>
Date:   Tue May 26 19:40:22 2020 +0300

    - client: Don't hide version string when built-in auto-update is disabled

client/src/reducers/index.js

@@ -96,6 +96,7 @@ const dashboard = handleActions(
                     canAutoUpdate,
                     isUpdateAvailable: true,
                     processingVersion: false,
+                    checkUpdateFlag: !!payload,
                 };
                 return newState;
             }
@@ -165,6 +166,7 @@ const dashboard = handleActions(
         autoClients: [],
         supportedTags: [],
         name: '',
+        checkUpdateFlag: false,
     },
 );