feat: default view setting (#2306)

This PR adds configuration of default project view in settings, which is used when the user has not visited the project and thus last view hasn't yet been saved in projects. Updates old settings and adds "First View" option with fallback.

Resolves https://kolaente.dev/vikunja/vikunja/issues/2153

Co-authored-by: Elscrux <nickposer2102@gmail.com>
Reviewed-on: https://kolaente.dev/vikunja/vikunja/pulls/2306
Reviewed-by: konrad <k@knt.li>
Co-authored-by: Elscrux <elscrux@gmail.com>
Co-committed-by: Elscrux <elscrux@gmail.com>

frontend/src/i18n/lang/en.json

@@ -95,6 +95,7 @@
         "weekStartMonday": "Monday",
         "language": "Language",
         "defaultProject": "Default Project",
+        "defaultView": "Default View",
         "timezone": "Time Zone",
         "overdueTasksRemindersTime": "Overdue tasks reminder email time",
         "filterUsedOnOverview": "Saved filter used on the overview page"
@@ -314,6 +315,9 @@
         "delete": "Delete"
       }
     },
+    "first": {
+      "title": "First View"
+    },
     "list": {
       "title": "List",
       "add": "Add",