Clean up module documentation (#36909)

* Clean up module documentation

This PR includes:
- Removal of `default: None` (and variations)
- Removal of `required: false`
- Fixing booleans and `type: bool` where required

* Fix remaining (new) validation issues

lib/ansible/modules/network/junos/junos_package.py

@@ -33,7 +33,6 @@ options:
         The I(src) argument can be either a localized path or a full
         path to the package file to install.
     required: true
-    default: null
     aliases: ['package']
   version:
     description:
@@ -41,8 +40,6 @@ options:
         version of the package that should be installed on the remote
         device.  If the I(version) argument is not specified, then
         the version is extracts from the I(src) filename.
-    required: false
-    default: null
   reboot:
     description:
       - In order for a package to take effect, the remote device must be
@@ -51,16 +48,15 @@ options:
         If disabled or the remote package does not need to be changed,
         the device will not be started.
     required: true
-    default: true
-    choices: ['true', 'false']
+    type: bool
+    default: 'yes'
   no_copy:
     description:
       - The I(no_copy) argument is responsible for instructing the remote
         device on where to install the package from.  When enabled, the
         package is transferred to the remote device prior to installing.
-    required: false
-    default: false
-    choices: ['true', 'false']
+    type: bool
+    default: 'no'
   validate:
     description:
       - The I(validate) argument is responsible for instructing the remote
@@ -68,17 +64,16 @@ options:
         compatibility with the package being installed. When set to false
         validation is not performed.
     version_added: 2.5
-    required: false
-    default: true
-    choices: ['true', 'false']
+    type: bool
+    default: 'yes'
   force:
     description:
       - The I(force) argument instructs the module to bypass the package
         version check and install the packaged identified in I(src) on
         the remote device.
     required: true
-    default: false
-    choices: ['true', 'false']
+    type: bool
+    default: 'no'
 requirements:
   - junos-eznc
   - ncclient (>=v0.5.2)