Two side bars: project tree and table of contents. Table of Contents editable with drag-and-drop. Various fixes and documentation.

What's Changed

• UI: Improving the behaviour of menus and the appearance of forms when editing by @mettta in #1126
• UI: add resizable bars for TOC and ProjectTree on document screens by @mettta in #1125
• tests/end2end: update port 51000 in test_02_server_host_specified.py by @mettta in #1131
• Refactoring templates by @mettta in #1133
• UI: add a right-hand modification to the resizable bar, and move TOC to right by @mettta in #1134
• export/html: basic support of image.* Sphinx directive by @stanislaw in #1130
• export/html: center content block on document page by @mettta in #1135
• export/html: fixes dragging content on the deep-traceability page by @mettta in #1136
• UI: improving panning on the deep-traceability screen by @mettta in #1139
• UI: Add resizable component to requirements_coverage TOC by @mettta in #1143
• export/html: Move nav panel in source_file_view to left by @mettta in #1144
• export/html: add bottom margin for requirement content items by @mettta in #1146
• tests/end2end: implement a test for collapsible list by @mettta in #1147
• pyproject.toml: exclude unneeded dependencies when releasing Pip by @stanislaw in #1149
• CI: Fix GitHub Actions deprecation warning about Node v12 by @stanislaw in #1150
• Bump version to 0.0.41-alpha by @stanislaw in #1153
• server: set websocket host to configured server host as well by @stanislaw in #1154
• export/html: project tree TOC: print full relative paths by @stanislaw in #1158
• tests/end2end: try to fix flaky test: UC112_T01_UI: sleep 1s to let animations finish by @stanislaw in #1159
• export/html: Connect to websocket relative to current domain by @richardbarlow in #1160
• server, main_router: fix resolution of paths for image assets by @stanislaw in #1162
• export/html: fix turbo links that were broken by the recent refactoring by @mettta in #1164
• server: load all document pages on demand by @stanislaw in #1163
• export/html: implement draggable_list by @mettta in #1165
• docs: update to 18/27 of Q2 documentation train by @stanislaw in #1166
• server, export/html: remove last hardcoded path to Stimulus.js by @stanislaw in #1167
• export/html: remove unused draggable_list.js by @mettta in #1168
• Bump version to 0.0.41 by @stanislaw in #1169

Full Changelog: 0.0.40...0.0.41