Refactor term-related settings into a dedicated class

Extracted term-related properties from AppSettings to a new TermSettings class for improved organization and separation of concerns. Updated appsettings.json to reflect the new structure.

FoodsharingSiegen.Server/Pages/AuditView.razor

@@ -6,7 +6,7 @@
 
 @inherits FsBase
 
-<PageTitle>Aktivitäten - @AppSettings.Title</PageTitle>
+<PageTitle>Aktivitäten - @AppSettings.Terms.Title</PageTitle>
 
 <div class="d-flex flex-column p-audit">
     <h2>Aktivitäten</h2>

FoodsharingSiegen.Server/Pages/Login.razor

@@ -4,11 +4,11 @@
 
 @inherits FoodsharingSiegen.Server.BaseClasses.FsBase
 
-<PageTitle>@AppSettings.Title</PageTitle>
+<PageTitle>@AppSettings.Terms.Title</PageTitle>
 
 <div class="d-flex justify-content-center align-items-center" style="height: 100vh;">
     <div class="card" style="width: 100%; max-width: 380px;">
-        <div class="card-header">@AppSettings.Title</div>
+        <div class="card-header">@AppSettings.Terms.Title</div>
         <div class="card-body">
             <Validation Validator="ValidationHelper.ValidateMail" @bind-Status="@IsValidMail">
                 <TextEdit @bind-Text="MailAddress" Role="TextRole.Email" Placeholder="E-Mail" Class="mt-0" KeyUp="TextEdit_KeyUp"></TextEdit>

FoodsharingSiegen.Server/Pages/Profile.razor

@@ -7,7 +7,7 @@
 
 @inherits FsBase
 
-<PageTitle>Profil - @AppSettings.Title</PageTitle>
+<PageTitle>Profil - @AppSettings.Terms.Title</PageTitle>
 
 <div style="width: 100%; max-width: 500px;">
 

FoodsharingSiegen.Server/Pages/Prospects.razor

@@ -5,7 +5,7 @@
 @using FoodsharingSiegen.Shared.Helper
 @inherits FsBase
 
-<PageTitle>Neue Foodsaver - @AppSettings.Title</PageTitle>
+<PageTitle>Neue Foodsaver - @AppSettings.Terms.Title</PageTitle>
 <h2>Neue Foodsaver</h2>
 
 <Button

FoodsharingSiegen.Server/Pages/ProspectsDone.razor

@@ -3,7 +3,7 @@
 @using FoodsharingSiegen.Shared.Helper
 @inherits FsBase
 
-<PageTitle>Abgeschlossene Einarbeitungen - @AppSettings.Title</PageTitle>
+<PageTitle>Abgeschlossene Einarbeitungen - @AppSettings.Terms.Title</PageTitle>
 <h2>Abgeschlossene Einarbeitungen</h2>
 
 @{

FoodsharingSiegen.Server/Pages/ProspectsVerify.razor

@@ -3,7 +3,7 @@
 @using FoodsharingSiegen.Shared.Helper
 @inherits FsBase
 
-<PageTitle>Freischalten - @AppSettings.Title</PageTitle>
+<PageTitle>Freischalten - @AppSettings.Terms.Title</PageTitle>
 
 <h2>Freischalten</h2>
 

FoodsharingSiegen.Server/Pages/Users.razor

@@ -22,7 +22,7 @@
 
 }
 
-<PageTitle>Benutzerverwaltung - @AppSettings.Title</PageTitle>
+<PageTitle>Benutzerverwaltung - @AppSettings.Terms.Title</PageTitle>
 
 <h2>Benutzerverwaltung <span style="font-size: .5em; line-height: 0;">Admin</span></h2>