feat: convert entire CLI to clibase (#6491)

I'm sorry.

cli/testdata/coder_schedule_start_--help.golden

@@ -1,3 +1,7 @@
+Usage: coder schedule start <workspace-name> { <start-time> [day-of-week] [location] | manual }
+
+Edit workspace start schedule
+
 Schedules a workspace to regularly start at a specific time.
 Schedule format: <start-time> [day-of-week] [location].
   * Start-time (required) is accepted either in 12-hour (hh:mm{am|pm}) format, or 24-hour format hh:mm.
@@ -8,30 +12,9 @@ Schedule format: <start-time> [day-of-week] [location].
     If omitted, we will fall back to either the TZ environment variable or /etc/localtime.
     You can check your corresponding location by visiting https://ipinfo.io - it shows in the demo widget on the right.
 
-Usage:
-  coder schedule start <workspace-name> { <start-time> [day-of-week] [location] | manual } [flags]
-
-Get Started:
   - Set the workspace to start at 9:30am (in Dublin) from Monday to Friday:     
 
-      $ coder schedule start my-workspace 9:30AM Mon-Fri Europe/Dublin 
+      $ coder schedule start my-workspace 9:30AM Mon-Fri Europe/Dublin
 
-Flags:
-  -h, --help   help for start
-
-Global Flags:
-      --global-config coder   Path to the global coder config directory.
-                              Consumes $CODER_CONFIG_DIR (default "~/.config/coderv2")
-      --header stringArray    HTTP headers added to all requests. Provide as "Key=Value".
-                              Consumes $CODER_HEADER
-      --no-feature-warning    Suppress warnings about unlicensed features.
-                              Consumes $CODER_NO_FEATURE_WARNING
-      --no-version-warning    Suppress warning when client and server versions do not match.
-                              Consumes $CODER_NO_VERSION_WARNING
-      --token string          Specify an authentication token. For security reasons setting
-                              CODER_SESSION_TOKEN is preferred.
-                              Consumes $CODER_SESSION_TOKEN
-      --url string            URL to a deployment.
-                              Consumes $CODER_URL
-  -v, --verbose               Enable verbose output.
-                              Consumes $CODER_VERBOSE
+---
+Run `coder --help` for a list of global options.