Description of problem:

We have 2 scripts that are acting as entrypoints for the containers in the Compose manifest:

• https://github.com/redhat-developer/rhdh-local/blob/main/fixes.sh
• https://github.com/redhat-developer/rhdh-local/blob/main/wait-for-plugins.sh

Their intent was pretty much clear when they were introduced, but right now, they are doing much more than "fixes" or "waiting for plugins". We should update the file names accordingly to reflect their purpose, otherwise it can be a bit misleading.

Suggestion to rename them more generically instead:

• fixes.sh could be renamed into something like prepare-and-install-dynamic-plugins.sh
• wait-for-plugins.sh could be renamed into wait-for-plugins-and-start.sh