Add abnormal binds to help page

That was about 1000x easier than I was expecting. Thanks @glacambre!

src/excmds.ts

@@ -31,6 +31,14 @@
 
     A "splat" operator (...) means that the excmd will accept any number of space-delimited arguments into that parameter.
 
+    Above each function signature you will see any aliases or key sequences bound to it. The internal names for the various modes are used, which are listed here:
+    
+        - `nmaps`: normal mode binds
+        - `imaps`: insert mode binds
+        - `inputmaps`: input mode binds
+        - `ignoremaps`: ignore mode binds
+        - `exaliases`: aliases in the command mode
+
     You do not need to worry about types. Return values which are promises will turn into whatever they promise to when used in [[composite]].
 
     At the bottom of each function's help page, you can click on a link that will take you straight to that function's definition in our code. This is especially recommended for browsing the [config](/static/docs/modules/_src_config_.html#defaults) which is nigh-on unreadable on these pages.

src/help.ts

@@ -88,19 +88,24 @@ async function addSetting(settingName: string) {
 browser.storage.onChanged.addListener((changes, areaname) => {
     if ("userconfig" in changes) {
         // JSON.stringify for comparisons like it's 2012
-        ;["exaliases", "nmaps"].forEach(kind => {
-            if (
-                JSON.stringify(changes.userconfig.newValue[kind]) !=
-                JSON.stringify(changes.userconfig.oldValue[kind])
-            )
-                addSetting(kind)
-        })
+        ;["nmaps", "imaps", "ignoremaps", "inputmaps", "exaliases"].forEach(
+            kind => {
+                if (
+                    JSON.stringify(changes.userconfig.newValue[kind]) !=
+                    JSON.stringify(changes.userconfig.oldValue[kind])
+                )
+                    addSetting(kind)
+            },
+        )
     }
 })
 
 addEventListener("load", async () => {
-    await addSetting("exaliases")
-    await addSetting("nmaps")
+    await Promise.all(
+        ["nmaps", "imaps", "ignoremaps", "inputmaps", "exaliases"].map(
+            addSetting,
+        ),
+    )
     // setCommandSetting() can change the height of nodes in the page so we need to scroll to the right place again
     if (document.location.hash) {
         document.location.hash = document.location.hash