docs: fixed some typos, formatting, grammar (#11540)

# Which Problems Are Solved

- Typos
- Punctuation
- Markdown table formatting
- ...

(A bunch of issues my editor gave)

# How the Problems Are Solved


# Additional Changes


# Additional Context

internal/notification/channels/smtp/plain_or_login_auth.go

@@ -8,7 +8,7 @@ import (
 	"github.com/zitadel/zitadel/internal/zerrors"
 )
 
-// golang net/smtp SMTP AUTH LOGIN or PLAIN Auth Handler
+// golang net/smtp: SMTP AUTH LOGIN or PLAIN Auth Handler
 // Reference: https://gist.github.com/andelf/5118732?permalink_comment_id=4825669#gistcomment-4825669
 
 func PlainOrLoginAuth(config PlainAuthConfig, host string) smtp.Auth {

internal/notification/handlers/notification_worker.go

@@ -38,7 +38,7 @@ type NotificationWorker struct {
 }
 
 // Timeout implements the Timeout-function of [river.Worker].
-// Maximum time a job can run before the context gets cancelled.
+// Maximum time a job can run before the context gets canceled.
 func (w *NotificationWorker) Timeout(*river.Job[*notification.Request]) time.Duration {
 	return w.config.TransactionDuration
 }