* src/cuirass/templates.scm (specifications-table): Improve accessibility.

* src/cuirass/templates.scm (specifications-table): Fix buttons size.

Using the application/xhtml+xml causes issues when using bootstrap.js.

* src/cuirass/http.scm (url-handler): Use the text/html content type.

* src/static/js/popper.min.js: New file.
* src/static/js/jquery-3.6.0.min.js: Remove it.
* src/static/js/jquery-3.3.1.min.js: New file.
* src/static/js/cuirass.js: New file.
* src/static/js/bootstrap.min.js: New file.
* src/static/css/bootstrap.css: Rename it ...
* src/static/css/bootstrap.min.css: ... into this new file.
* src/cuirass/templates.scm (html-page): Adapt it.
* Makefile.am (dist_css_DATA, dist_js_DATA): Adapt them.

* src/cuirass/templates.scm (specifications-table): Fix indentation.

* src/cuirass/templates.scm (html-page): Fix focus order.

* src/cuirass/templates.scm (html-page): Improve Status dropdown
accessibility.
* src/static/css/cuirass.css: Remove unused sections.

* src/static/js/bootstrap.bundle.min.js: New file.
* Makefile.am (dist_js_DATA): Add it.
* src/cuirass/http.scm (%file-white-list): Ditto.
* src/cuirass/templates.scm: Ditto.

This considerably speeds up cascade deleting.

* src/sql/upgrade-9.sql: New file.
* Makefile.am (dist_sql_DATA): Add it.
* src/schema.sql (Jobs_build, BuildProducts_build, Notifications_build): New
indexes.

* src/cuirass/database.scm (db-get-build-percentages): Fix it.

* src/cuirass/database.scm (db-get-jobs-history): Bind limit parameter.

* src/cuirass/templates.scm (evaluation-info-table): Hide dashboard button for
failed evaluations.

* src/cuirass/http.scm (url-handler): Pass previous and next evaluation to
evaluation-dashboard call.
* src/cuirass/templates.scm (evaluation-dashboard): Add "prev-eval" and
"next-eval" arguments.
* src/static/css/cuirass.css (eval-nav): New section.

* src/cuirass/database.scm (db-get-previous-eval, db-get-next-eval): New
procedures.
* tests/database.scm ("db-get-previous-eval", "db-get-next-eval"): New tests.

* src/cuirass/templates.scm (html-page): Add "header" and "main" sections.

* src/cuirass/database.scm (db-get-jobs-history): New procedure.
* src/cuirass/http.scm (jobs-history->json-object): New procedure.
(url-handler): New "/api/jobs/history" route.
* tests/database.scm ("db-get-jobs-history"): New test.

* src/cuirass/http.scm (url-handler): Use "x86_64-linux" as the default system
only if is supported by the specification.

* src/cuirass/database.scm (db-get-build-percentages): Return 0 if no previous
build was found.

* src/cuirass/scripts/remote-worker (%request-period): Fix period read.

* src/cuirass/templates.scm (specifications-table): Round percentages.

* src/cuirass/http.scm (url-handler): Fix typo.

* src/cuirass/http.scm (url-handler): Handle unknown evaluation id on
"/eval/id/dashboard" route.

* src/sql/upgrade-6.sql: New file.
* Makefile.am (dist_sql_DATA): Add it.

* src/sql/upgrade-5.sql: New file.
* Makefile.am (dist_sql_DATA): Add it.

* src/cuirass/database.scm (db-get-evaluations-absolute-summary): New
procedure.
* src/cuirass/http.scm (url-handler): Pass the evaluation absolute summary to
"evaluation-info-table".
* src/cuirass/templates.scm (evaluation-info-table): Adapt it.
* src/static/css/cuirass.css (job-abs): New section.
* tests/database.scm ("db-get-evaluations-absolute-summary"): New test.

* src/cuirass/templates.scm (specifications-table): Fix glitches.
* src/static/css/cuirass.css (job-val): New section.
* doc/cuirass.texi: Update it.

* src/cuirass/specification.scm (%build-types): Add 'images, 'system-tests and
'tarball support.
* doc/cuirass.texi (Specifications): Adapt it.

* src/sql/upgrade-4.sql: New file.
* Makefile.am (dist_sql_DATA): Add it.
* src/schema.sql (Specifications)[period]: New field.
* src/cuirass/base.scm (process-specs): Honor the specification period.
* src/cuirass/database.scm (db-get-time-since-previous-build): Rename it into ...
(db-get-time-since-previous-eval): ... this new procedure.
* src/cuirass/specification.scm (<specification>)[period]: New field.
(specification->sexp, sexp->specification): Adapt accordingly.
* src/cuirass/templates.scm (specification-edit): Ditto.
* tests/database.scm ("db-get-time-since-previous-build"): Remame it into ...
("db-get-time-since-previous-eval"): ... this new procedure.

* src/cuirass/database.scm (db-get-specifications-summary): Return the latest
evaluation.
* src/cuirass/templates.scm (specifications-table): Add a monitor and a toggle
button.

* tests/database.scm ("db-get-specifications-summary"): Fix it.

* src/cuirass/database.scm (db-get-specifications-summary): New procedure.
* tests/database.scm ("db-get-specifications-summary"): New test.
* src/cuirass/templates.scm (specifications-table): Add a summary argument.
* src/cuirass/http.scm (url-handler): Adapt it.

Join Build and Jobs tables using the build id instead of the build derivation
to speed queries.

* src/sql/upgrade-3.sql: New file.
* Makefile.am (dist_sql_DATA): Add it.
* src/schema.sql (Jobs)[derivation]: Replace it by ...
[build]: this new column.
* src/cuirass/database.scm (db-add-job, db-get-jobs): Adapt them.

* src/cuirass/templates.scm (evaluation-dashboard): Add a spinner.

* src/static/css/bootstrap.css: Update it.