Update .NET content

[PeloWriter]

.NET docs need a few updates:

• [x] Adopt the common content for Getting Started - @PeloWriter
• [x] Add performance to Configuration step in Getting Started- @PeloWriter
• [x] Review Ignoring Exceptions content IA - @PeloWriter
• [x] Review Unit testing in relation to Scopes and Hubs common content - @PeloWriter
• [ ] Add missing code sample for Sampling Inheritance - @bruno-garcia
• [x] Fix format issue on Diagnostic Logger page - @PeloWriter
• [x] Update Migration title to "Migration Guide" - @PeloWriter
• [x] Add a list of features (/includes/getting-started-primer) including compatibility, unit/integration tests, and samples - @bruno-garcia @PeloWriter
• [ ] Verify the list of Options - @bruno-garcia
• [ ] Add missing code sample for unsetting a user at logout - @bruno-garcia
• [ ] Add missing code sample for setting a user - @bruno-garcia
• [x] Change Attachments "this feature is supported..." to a Note - @PeloWriter
• [ ] Add missing code sample to examples of scrubbing sensitive data (contextual information and user details) - @bruno-garcia
• [ ] Update wizard for F# and C# (tracked in https://github.com/getsentry/sentry-docs/issues/2805) - @PeloWriter