NAS-129579 / 24.10-RC.1 / Add custom app form (by RehanY147)

[bugclerk]

Automatic cherry-pick failed. Please resolve conflicts by running:

git reset --hard HEAD~1
git cherry-pick -x 5ad5564de6e370764519ede83b943b38e4ff5730
git cherry-pick -x e5d45909e5e28ffc3f42d8ec2d23ac12a287e175
git cherry-pick -x dd1a26b4b6b26ef44c5aeecbc1dc40d472a41d5a
git cherry-pick -x 11723bd172ee15cc12f52c0ee5c05b3cbd43eaa4
git cherry-pick -x 9851f195594d964367f2552b53bf327a80bfe241
git cherry-pick -x a1c82363dbf6cc101ab0e7e6db798525723447c0
git cherry-pick -x f4ae8c488aa08a8ee6bd113af9c782d557888392
git cherry-pick -x 8e98c200bc52d9f1bde46e57735b39680499b54e
git cherry-pick -x 4a433bfde5dde11e04ab5587670d0a44f8a67bbc
git cherry-pick -x 98fdf883b89571e50c557ff2fe98364f10996dcc
git cherry-pick -x 86ae8bd398874fc791b58540ae4b18246c774408
git cherry-pick -x 4de3d9c47bd6355552ddd1f4e40622c3a85eaf57
git cherry-pick -x df24a891235de023e0c670c060e81de55dcd91de
git cherry-pick -x 4c720544be5d71187a001985f2b8dc4cada379b3

If the original PR was merged via a squash, you can just cherry-pick the squashed commit:

git reset --hard HEAD~1
git cherry-pick -x f58a257e79cdf5e634f640ae25de84c3884a91ee

Changes:

Adds a form to install apps using custom YML config

Testing:

Go to the apps discover page, and click on the 'Custom App' button. Enter a unique app name and enter this config in the "Custom Config" input.

services:
  nginx:
    image: nginx:latest
    ports:
      - "8580:80"
    restart: unless-stopped

Downstream

Affects	Reasoning
Documentation	Adds a form to install custom app with YAML config

Original PR: #10586
Jira URL: https://ixsystems.atlassian.net/browse/NAS-129579

[undsoft]

backported

[AlexKarpov98]

ported.

[bugclerk]

This PR has been merged and conversations have been locked.
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