Updated deps and misc fixes and updates

- Updated some Rust dependencies
- Fixed an issue with CSP header, this was not configured correctly
- Prevent sending CSP and Frame headers for the MFA connector.html files.
  Else some clients will fail to handle these protocols.
- Add `unsafe-inline` for `script-src` only to the CSP for the Admin Interface
- Updated JavaScript and CSS files for the Admin interface
- Changed the layout for showing overridden settings, better visible now.
- Made the version check cachable to prevent hitting the Github API rate limits
- Hide the `database_url` as if it is a password in the Admin Interface
  Else for MariaDB/MySQL or PostgreSQL this was plain text.
- Fixed an issue that pressing enter on the SMTP Test would save the config.
  resolves #2542
- Prevent user names larger then 50 characters
  resolves #2419

src/config.rs

@@ -1058,12 +1058,11 @@ fn js_escape_helper<'reg, 'rc>(
     _rc: &mut RenderContext<'reg, 'rc>,
     out: &mut dyn Output,
 ) -> HelperResult {
-    let param = h.param(0).ok_or_else(|| RenderError::new("Param not found for helper \"js_escape\""))?;
+    let param = h.param(0).ok_or_else(|| RenderError::new("Param not found for helper \"jsesc\""))?;
 
     let no_quote = h.param(1).is_some();
 
-    let value =
-        param.value().as_str().ok_or_else(|| RenderError::new("Param for helper \"js_escape\" is not a String"))?;
+    let value = param.value().as_str().ok_or_else(|| RenderError::new("Param for helper \"jsesc\" is not a String"))?;
 
     let mut escaped_value = value.replace('\\', "").replace('\'', "\\x22").replace('\"', "\\x27");
     if !no_quote {