Verifying the server user to work with sudo (#1254)

* checking that the username is root

Changing the mechanism for checking that the username is root

* wheel group check (#1198)

Checking if the user is included in the wheel group

* Checking requirements in script (#1210)

* Checking requirements in script

Checking requirements for sudo users in script

* Adding error handling

Adding error handling in the server controller for:
Sudo package is not pre-installed for sudo users.
Server user or associated group is not listed in the sudoers file.
Server user password required

* adding error codes

* added extended error descriptions

* checking sudo permission for root

Сhecking sudo permission for root.
Сhecking and redefining the system language.

* Username if whoami returns an error

Сommand to use home directory name if whoami returns error or is missing.

* Correcting text error

Correction of the text of the extended description of the package manager error

* Updating translations

* Optimization check_user_in_sudo.sh

* exceptions for missing uname

* output only for groups sudo or wheel

client/translations/amneziavpn_fa_IR.ts

@@ -3388,8 +3388,8 @@ It&apos;s okay as long as it&apos;s from someone you trust.</source>
     </message>
     <message>
         <location filename="../core/errorstrings.cpp" line="22"/>
-        <source>The user does not have permission to use sudo</source>
-        <translation>The user does not have permission to use sudo</translation>
+        <source>The user is not a member of the sudo group</source>
+        <translation>کاربر عضو گروه sudo نیست</translation>
     </message>
     <message>
         <location filename="../core/errorstrings.cpp" line="26"/>
@@ -3510,8 +3510,8 @@ It&apos;s okay as long as it&apos;s from someone you trust.</source>
     </message>
     <message>
         <location filename="../core/errorstrings.cpp" line="23"/>
-        <source>Server error: Packet manager error</source>
-        <translation>Server error: Packet manager error</translation>
+        <source>Server error: Package manager error</source>
+        <translation>خطای سرور: خطای مدیر بسته</translation>
     </message>
     <message>
         <location filename="../core/errorstrings.cpp" line="34"/>