chore(runtime/plugins): document that all built-in plugins use the fixed version 1.0.0

As of commit 4c47a27, the version of the
built-in plugin is not displayed or used in any way.

Rather than removing it, keep it in the code and document that it should remain
at version `1.0.0`. This way, the information remains available to contributors
and users.

Author: usfbih8u

runtime/plugins/autoclose/autoclose.lua

@@ -1,4 +1,4 @@
-VERSION = "1.0.0"
+VERSION = "1.0.0" -- all built-in plugins fixed to 1.0.0
 
 local uutil = import("micro/util")
 local utf8 = import("utf8")

runtime/plugins/comment/comment.lua

@@ -1,4 +1,4 @@
-VERSION = "1.0.0"
+VERSION = "1.0.0" -- all built-in plugins fixed to 1.0.0
 
 local util = import("micro/util")
 local config = import("micro/config")

runtime/plugins/diff/diff.lua

@@ -1,4 +1,4 @@
-VERSION = "1.0.0"
+VERSION = "1.0.0" -- all built-in plugins fixed to 1.0.0
 
 local os = import("os")
 local filepath = import("path/filepath")

runtime/plugins/ftoptions/ftoptions.lua

@@ -1,4 +1,4 @@
-VERSION = "1.0.0"
+VERSION = "1.0.0" -- all built-in plugins fixed to 1.0.0
 
 function onBufferOpen(b)
     local ft = b:FileType()

runtime/plugins/linter/linter.lua

@@ -1,4 +1,4 @@
-VERSION = "1.0.0"
+VERSION = "1.0.0" -- all built-in plugins fixed to 1.0.0
 
 local micro = import("micro")
 local runtime = import("runtime")

runtime/plugins/literate/literate.lua

@@ -1,4 +1,4 @@
-VERSION = "1.0.0"
+VERSION = "1.0.0" -- all built-in plugins fixed to 1.0.0
 
 local config = import("micro/config")
 

runtime/plugins/status/status.lua

@@ -1,4 +1,4 @@
-VERSION = "1.0.0"
+VERSION = "1.0.0" -- all built-in plugins fixed to 1.0.0
 
 local micro = import("micro")
 local buffer = import("micro/buffer")