add i18n 404 and README support (#132)

* feat(params.toml): enable analytics and configure Umami Analytics

Enable analytics by setting `enable` to `true` in the `[analytics]` section of the `params.toml` file. Also, configure Umami Analytics by providing the `data_website_id`, `src`, and `data_domains` values.

* feat(404.html): replace hardcoded "404 page not found" text with translated version to improve localization

* feat(README.md): add README.md file with information about the Bridget theme and its features
feat(getStarted.md): add getStarted.md file with instructions on how to get started with the Bridget theme, including installation and content management instructions

exampleSite/config/_default/params.toml

@@ -30,7 +30,7 @@ sogou = ""
 
 # Analytics config
 [analytics]
-enable = false
+enable = true
 # Google Analytics
 [analytics.google]
 id = ""
@@ -46,10 +46,10 @@ server = ""
 id = ""
 # Umami Analytics
 [analytics.umami]
-data_website_id = ""
-src = ""
+data_website_id = "44a4a42d-ec8e-44c9-a38c-7533929e9845"
+src = "https://umami.sped0nwen.com/script.js"
 data_host_url = ""
-data_domains = ""
+data_domains = "bridget-demo.sped0nwen.com"
 # Plausible Analytics
 [analytics.plausible]
 data_domain = ""