Update deps; move to .NET 7

- Update local htmx to v1.9.2
- Get version from assembly

src/MyPrayerJournal/Views/Helpers.fs

@@ -30,3 +30,13 @@ let noResults heading link buttonText text =
 /// Create a date with a span tag, displaying the relative date with the full date/time in the tooltip
 let relativeDate (date : Instant) now (tz : DateTimeZone) =
     span [ _title (date.InZone(tz).ToDateTimeOffset().ToString ("f", null)) ] [ Dates.formatDistance now date |> str ]
+
+/// The version of myPrayerJournal
+let version =
+    let v = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version
+    seq {
+        string v.Major
+        if v.Minor > 0 then
+            $".{v.Minor}"
+            if v.Revision > 0 then $".{v.Revision}"
+    } |> Seq.reduce (+)

src/MyPrayerJournal/Views/Layout.fs

@@ -95,7 +95,7 @@ let toaster =
 let htmlFoot =
     footer [ _class "container-fluid" ] [
         p [ _class "text-muted text-end" ] [
-            str "myPrayerJournal v3.1.1"
+            str $"myPrayerJournal {version}"
             br []
             em [] [
                 small [] [