Apply review feedback and fix Credo in fee type filter

- Index: use FilterParams and constants; fix parse recursion; validate fee type/group
  IDs; OR semantics for :in; build_query_params/reset_all_filters map-based API;
  alias order (Credo); Map.take list deprecation fix
- MemberFilterComponent: use FilterParams and constants; fee_type_filter_part
  helper (Credo nesting); in_not_in_filter_label_class; reset_all_filters map;
  button label for :not_in and combined filter count; fieldset borders
- Gettext: Fee types, filter count plural, 'without %{name}' (en/de)

priv/gettext/en/LC_MESSAGES/default.po

@@ -3234,6 +3234,18 @@ msgid "Include joining cycle: When active, members pay from their joining cycle;
 msgstr "Include joining cycle: When active, members pay from their joining cycle; when inactive, from the next full cycle."
 
 #: lib/mv_web/live/components/member_filter_component.ex
-#, elixir-autogen, elixir-format, fuzzy
+#, elixir-autogen, elixir-format
 msgid "Fee types"
-msgstr ""
+msgstr "Fee types"
+
+#: lib/mv_web/live/components/member_filter_component.ex
+#, elixir-autogen, elixir-format
+msgid "%{count} filter active"
+msgid_plural "%{count} filters active"
+msgstr[0] "%{count} filter active"
+msgstr[1] "%{count} filters active"
+
+#: lib/mv_web/live/components/member_filter_component.ex
+#, elixir-autogen, elixir-format
+msgid "without %{name}"
+msgstr "without %{name}"