feat(cli): allow showing schedules for multiple workspaces (#10596)

* coder list: adds information about next start / stop to available columns (not default)
* coder schedule: show now essentially coder list with a different set of columns
* Updates cli schedule unit tests to use new dbfake

Co-authored-by: Mathias Fredriksson <mafredri@gmail.com>

cli/testdata/coder_list_--help.golden

@@ -13,8 +13,8 @@ OPTIONS:
 
   -c, --column string-array (default: workspace,template,status,healthy,last built,outdated,starts at,stops after)
           Columns to display in table output. Available columns: workspace,
-          template, status, healthy, last built, outdated, starts at, stops
-          after, daily cost.
+          template, status, healthy, last built, outdated, starts at, starts
+          next, stops after, stops next, daily cost.
 
   -o, --output string (default: table)
           Output format. Available formats: table, json.

cli/testdata/coder_schedule_--help.golden

@@ -8,7 +8,7 @@ USAGE:
 SUBCOMMANDS:
     override-stop    Override the stop time of a currently running workspace
                      instance.
-    show             Show workspace schedule
+    show             Show workspace schedules
     start            Edit workspace start schedule
     stop             Edit workspace stop schedule
 

cli/testdata/coder_schedule_show_--help.golden

@@ -1,15 +1,29 @@
 coder v0.0.0-devel
 
 USAGE:
-  coder schedule show <workspace-name>
+  coder schedule show [flags] <workspace | --search <query> | --all>
 
-  Show workspace schedule
+  Show workspace schedules
 
-  Shows the following information for the given workspace:
+  Shows the following information for the given workspace(s):
     * The automatic start schedule
     * The next scheduled start time
     * The duration after which it will stop
     * The next scheduled stop time
 
+OPTIONS:
+  -a, --all bool
+          Specifies whether all workspaces will be listed or not.
+
+  -c, --column string-array (default: workspace,starts at,starts next,stops after,stops next)
+          Columns to display in table output. Available columns: workspace,
+          starts at, starts next, stops after, stops next.
+
+  -o, --output string (default: table)
+          Output format. Available formats: table, json.
+
+      --search string (default: owner:me)
+          Search for a workspace with a query.
+
 ———
 Run `coder --help` for a list of global options.