upgrade to filament v4

app/Models/Account.php

@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Relations\HasOne;
 use App\Observers\AccountObserver;
 use Illuminate\Database\Eloquent\Attributes\ObservedBy;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
@@ -47,7 +48,7 @@ class Account extends Model
         return $this->hasMany(Balance::class);
     }
 
-    public function latestBalance(): \Illuminate\Database\Eloquent\Relations\HasOne
+    public function latestBalance(): HasOne
     {
         return $this->hasOne(Balance::class)->latestOfMany();
     }

app/Models/AccountType.php

@@ -15,7 +15,7 @@ class AccountType extends Model
     /**
      * Get all of the accounts for the AccountType
      *
-     * @return \Illuminate\Database\Eloquent\Relations\HasMany
+     * @return HasMany
      */
     public function accounts(): HasMany
     {

app/Models/Balance.php

@@ -20,7 +20,7 @@ class Balance extends Model
     /**
      * Get the ledger that owns the Balance
      *
-     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     * @return BelongsTo
      */
     public function ledger(): BelongsTo
     {

app/Models/Ledger.php

@@ -55,7 +55,7 @@ class Ledger extends Model
     /**
      * Get all of the balances for the Ledger
      *
-     * @return \Illuminate\Database\Eloquent\Relations\HasMany
+     * @return HasMany
      */
     public function balances(): HasMany
     {

app/Models/PermissionType.php

@@ -14,7 +14,7 @@ class PermissionType extends Model
     /**
      * Get all of the permissions for the PermissionType
      *
-     * @return \Illuminate\Database\Eloquent\Relations\HasMany
+     * @return HasMany
      */
     public function permissions(): HasMany
     {