zmiana month na m i poprawka w kolorach paginaci

templates/main.html

@@ -33,7 +33,7 @@
 
 {% set month_names = ["styczeń", "luty", "marzec", "kwiecień", "maj", "czerwiec", "lipiec", "sierpień", "wrzesień",
 "październik", "listopad", "grudzień"] %}
-{% set selected_month = request.args.get('month') or now.strftime('%Y-%m') %}
+{% set selected_month = request.args.get('m') or now.strftime('%Y-%m') %}
 
 <!-- Pulpit: zwykły <select> -->
 <div class="d-none d-md-flex justify-content-end align-items-center flex-wrap gap-2 mb-3">
@@ -230,7 +230,7 @@
           {% for offset in range(0, 6) %}
           {% set d = (now - timedelta(days=offset * 30)) %}
           {% set val = d.strftime('%Y-%m') %}
-          <a href="{{ url_for('main_page', month=val) }}" class="btn btn-outline-light">
+          <a href="{{ url_for('main_page', m=val) }}" class="btn btn-outline-light">
             {{ month_names[d.month - 1] }} {{ d.year }}
           </a>
           {% endfor %}