Fix various minor issues (#545)

* Add absolute URL to power tests

* Update to target Python 3.10

* Return user to current page when clicking 'mark reviewed'

* Add units to power test record detail and form

I'm a bad scientist (coz I'm an engineer)

* Allow a higher value in PSSC fields

* Default venue to event venue in EC/PT

* Fix population of initial venue values for EC/PT

* Add link to create power test from EC detail

* Do not set power plan field to required on RA

"This might be a problem if the risk assessment is being done by one person and the power plan by another."

* Default power MIC to MIC

* Implement some suggestions from the Doctor

* Prevent checking in to cancelled events and dry hires

Will close #539

* Exclude dry hires from H&S overview list

* Add "ex VAT" tooltips to asset purchase price and replacement cost

* Automagically clear and focus ID field when audit modal closes

Closes #533

* Delete unused things

* Allow two decimal places in cable length, show training item IDs in selectpicker

Will close #540

* Fix #524 500 Error when viewing qualification list for items nobody is qualified in

* Update README.md

* Add a guard against nulls in recent changes

Maybe fixes #537 I'm unable to replicate locally

* Turn down verbosity of CI tests, fix tests, potential speedup

* Squash migration

* Add encoding to open

* Update to v3 upload-artifact

Resolves a deprecation warning

assets/templates/partials/asset_list_table.html

@@ -12,7 +12,7 @@
       </thead>
       <tbody id="asset_table_body">
         {% for item in object_list %}
-            <tr class="table-{{ item.status.display_class|default:'' }} assetRow">
+            <tr class="table-{{ item.status.display_class|default:'' }} assetRow" id="{{ item.asset_id }}">
                 <th scope="row" class="align-middle"><a class="assetID" href="{% url 'asset_detail' item.asset_id %}">{{ item.asset_id }}</a></th>
                 <td class="assetDesc"><span class="text-truncate d-inline-block align-middle">{{ item.description }}</span></td>
                 <td class="assetCategory align-middle">{{ item.category }}</td>