[Enhancement] Adds ability to enable/disable sources (#481)

* [Unrelated] updated module name for existing liveview module

* Updated toggle component and moved MP index table to a liveview

* [WIP] reverted MP index table; added source count to MP index

* Moved new live table to sources index

* Added 'enabled' boolean to sources

* Got 'enabled' logic working re: downloading pending media

* Updated sources context to do the right thing when a source is updated

* Docs and tests

* Updated slow indexing to maintain its old schedule if re-enabled

* Hooked up the enabled toggle to the sources page

* [Unrelated] added direct links to various tabs on the sources table

* More tests

* Removed unneeded guard in

* Removed outdated comment

assets/js/alpine_helpers.js

@@ -35,3 +35,10 @@ window.markVersionAsSeen = (versionString) => {
 window.isVersionSeen = (versionString) => {
   return localStorage.getItem('seenVersion') === versionString
 }
+
+window.dispatchFor = (elementOrId, eventName, detail = {}) => {
+  const element =
+    typeof elementOrId === 'string' ? document.getElementById(elementOrId) : elementOrId
+
+  element.dispatchEvent(new CustomEvent(eventName, { detail }))
+}