Fix macro hygine issues

[hamza1311]

Description

This PR:

• Adds #![no_implicit_prelude] in macro tests. This ensures that:
  • We don't use anything we are not supposed to use
  • Traits are called unambiguously
• Adds #[automatically_derived] and #[doc(hidden)] where missing
• Replace Span::call_site() with Span::mixed_site()

Fixes #1633

Checklist

• I have run cargo make pr-flow
• I have reviewed my own code
• I have added tests

[github-actions]

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[github-actions]

Size Comparison

examples	master (KB)	pull request (KB)	diff
boids	311.480	311.480	0
contexts	232.229	232.229	0
counter	164.662	164.662	0
dyn_create_destroy_apps	172.883	172.883	0
file_upload	195.104	195.104	0
function_memory_game	349.479	349.479	0
function_router	406.710	406.710	0
function_todomvc	325.426	325.426	0
futures	362.470	362.470	0
game_of_life	207.341	207.341	0
inner_html	156.523	156.523	0
js_callback	172.027	172.027	0
keyed_list	329.191	329.191	0
mount_point	163.830	163.830	0
nested_list	225.504	225.504	0
node_refs	170.931	170.931	0
password_strength	1851.892	1851.892	0
portals	184.419	184.419	0
router	588.177	588.177	0
simple_ssr	577.595	577.595	0
ssr_router	497.569	497.569	0
suspense	221.866	221.866	0
timer	170.516	170.516	0
todomvc	270.867	270.867	0
two_apps	166.136	166.136	0
webgl	170.942	170.942	0

[WorldSEnder]

Not sure why mixed_site is needed on Token!s, but it can't hurt :)

[hamza1311]

Not sure why mixed_site is needed on Token!s, but it can't hurt :)

I did a find and replace for call_site()), which should've covered most (if not all cases). It doesn't really matter though

I'm going to merge this. If it causes any problems, we can always revert it