feat(v2.3.4): elevated parser.ts to main library

This commit moves parser.ts to a fully supported fun module. Tests and
documentation, written by AI and reviewed by human, are at 100% and look
good. There will be a change to the error type of parser at some point,
but for now the errors are "good enough".

RELEASE: v2.3.4

Author: baetheus

deno.json

@@ -1,9 +1,7 @@
 {
   "name": "@baetheus/fun",
-  "version": "2.3.3",
+  "version": "2.3.4",
   "exports": {
-    "./ideas/dux": "./ideas/dux.ts",
-    "./ideas/parser": "./ideas/parser.ts",
     "./applicable": "./applicable.ts",
     "./array": "./array.ts",
     "./async": "./async.ts",
@@ -25,6 +23,7 @@
     "./fn_either": "./fn_either.ts",
     "./foldable": "./foldable.ts",
     "./free": "./free.ts",
+    "./ideas/dux": "./ideas/dux.ts",
     "./identity": "./identity.ts",
     "./initializable": "./initializable.ts",
     "./iterable": "./iterable.ts",
@@ -38,6 +37,7 @@
     "./optic": "./optic.ts",
     "./option": "./option.ts",
     "./pair": "./pair.ts",
+    "./parser": "./parser.ts",
     "./predicate": "./predicate.ts",
     "./premappable": "./premappable.ts",
     "./promise": "./promise.ts",
@@ -48,6 +48,7 @@
     "./showable": "./showable.ts",
     "./sortable": "./sortable.ts",
     "./state": "./state.ts",
+    "./state_either": "./state_either.ts",
     "./stream": "./stream.ts",
     "./string": "./string.ts",
     "./sync": "./sync.ts",
@@ -62,4 +63,4 @@
     "README.md",
     "deno.json"
   ]
-}
+}