[ColorPicker]Add option to choose what clicking individual mouse buttons does (#39025)

## Summary of the Pull Request
Enables the users to choose what left, right, and middle click does when
color picker is open.
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist

- [x] **Closes:** #39006
- [x] **Communication:** I've discussed this with core contributors
already
- [x] **Tests:** All pass
- [x] **Localization:** All end user facing strings can be localized
- [x] **Dev docs:** No need
- [x] **New binaries:** None
- [x] **Documentation updated:** No need
## Detailed Description of the Pull Request / Additional comments
![Screenshot of the
settings](https://github.com/user-attachments/assets/a3e1349b-6bb9-4e2f-97f3-a5106a7d92ce)
Adds option to choose from 3 click behaviors for each standard mouse
button:
* **Pick color and open editor**: Copies color to clipboard, saves it to
the color history and opens the editor
* **Pick color and close**: Copies color to clipboard, saves it to the
color history and exits
* **Close**: Closes color picker without copying the color

Pressing <kbd>Enter</kbd> or <kbd>Space</kbd> does what clicking the
primary button would.
Left and middle click actions execute on mouse down, right click on
mouse up for reasons discussed previously (I can't find the conversation
now)
Default settings are chosen in such a way that very little or nothing
changes by updating.
## Validation Steps Performed
Tested:
* Migrating settings from v2.0 to v2.1 (v1 to v2.1 not tested)
* Settings page displays and saves settings correctly
* Default settings load correctly
* All three click actions do what they are supposed to
* Activation behavior works as expected, doesn't affect click actions

.github/actions/spell-check/expect.txt

@@ -910,6 +910,7 @@ metafile
 mfc
 Mgmt
 Microwaved
+middleclickaction
 midl
 mii
 mindaro
@@ -1251,6 +1252,7 @@ prg
 prgh
 prgms
 pri
+primaryclickaction
 PRINTCLIENT
 printmanagement
 prm
@@ -1426,6 +1428,7 @@ SDKDDK
 sdns
 searchterm
 SEARCHUI
+secondaryclickaction
 SECONDARYDISPLAY
 secpol
 securestring