big help upgrades

- short descriptions for command list
  - argument descriptions
  - render argument list on detailed help page

commands/message/image/deepai/deepdream.js

@@ -9,6 +9,7 @@ module.exports = {
   aliases: ['dd'],
   metadata: {
     description: 'Processes an image with DeepAI DeepDream.',
+    description_short: 'DeepDream image processing',
     examples: ['deepdream'],
     category: 'image',
     usage: 'deepdream <image>'

commands/message/image/deepai/superresolution.js

@@ -9,6 +9,7 @@ module.exports = {
   aliases: ['sr'],
   metadata: {
     description: 'Upscales an image with SuperResolution.',
+    description_short: 'SuperResolution upscaling',
     examples: ['superresolution'],
     category: 'image',
     usage: 'superresolution <image>'

commands/message/image/deepai/text2image.js

@@ -10,6 +10,7 @@ module.exports = {
   aliases: ['t2i'],
   metadata: {
     description: 'Generates an image with DeepAI Text2Image using a text prompt.',
+    description_short: 'Image from text prompt',
     examples: ['text2image Mushroom'],
     category: 'image',
     usage: 'text2image <image>'

commands/message/image/deepai/waifu2x.js

@@ -9,6 +9,7 @@ module.exports = {
   aliases: ['w2x'],
   metadata: {
     description: 'Processes an image with Waifu2x.',
+    description_short: 'Waifu2x upscaling',
     examples: ['waifu2x'],
     category: 'image',
     usage: 'waifu2x <image>'