Removed old PHP code, migrated to Python and Flask

Update .dockerignore, .env, and 503 more files...

templates/pages/project_index.jinja

@@ -0,0 +1,40 @@
+{% extends "pages/_content_index.jinja" %}
+
+{% block head_title %}{{ l10n("search.head.title", "projects", user_lang) }}{% endblock %}
+{% block head_description %}{{ l10n("search.head.title", "projects", user_lang) }}{% endblock %}
+
+{% block header_title %}
+    <i class="fad fa-briefcase t-size-16 mr-s t-muted"></i>{{ l10n("header.root", "projects", user_lang) }}<span class="mobile-hide">
+    <span class="mx-s t-size-15">❱</span>{{ l10n("header.search", "projects", user_lang) }}</span>
+{% endblock %}
+
+{% block content_filters %}
+[Project filters here !]
+{% endblock %}
+
+{% block content_listing %}
+
+    {% for project_id, project_data in get_projects().items() %}
+        <div class="p-s border r-m">
+            <a href="{{ l10n_url_abs('/content/' + project_id, raw_lang) }}" class="a-hidden">
+                <div class="content-search-entry">
+                    <img class="content-search-image mr-s r-l"
+                         src="{{ url_for("static", filename=project_data.metadata.index.image_url) }}"
+                         alt="TODO">
+                    <h3 class="mb-xs">
+                        {{ l10n(project_data.metadata.index.title_key, project_id, lang) }}
+                    </h3>
+                    <p>{{ l10n(project_data.metadata.index.preamble_key, project_id, lang) }}</p>
+                </div>
+            </a>
+
+            <p class="mt-xs">
+                <i class="fad fa-tags t-size-8"></i>
+                {% for project_tag in project_data.metadata.general.tags %}
+                    <a href="{{ l10n_url_abs('/content/?tags=' + project_tag, raw_lang) }}" class="ml-xs">#{{ project_tag }}</a>
+                {% endfor %}
+            </p>
+        </div>
+
+    {% endfor %}
+{% endblock %}