Forms: Rephrase the tooltip to reject other instance hosters responsi… (#1810)

## Context

The forms display a tooltip with this content:

<img width="671" height="236" alt="image"
src="https://github.com/user-attachments/assets/6b5e8ec6-1340-4ae7-bbf9-e6d7c955ff75"
/>

Textual content: 
> This form is created by a Grist user, and is not endorsed by Grist
Labs. Do not submit passwords through this form, and be careful with
links in it. Report malicious forms to
[[email protected]](mailto:[email protected]).

But it does not tell anything about other service providers or hosters
responsibility. It would be clearer to reject theirs too.

## Proposed solution

Rephrase this tooltip with this content :
> This form is created by a Grist user, and is not endorsed by the
editor (Grist Labs) nor by any party providing this service. Do not
submit passwords through this form, and be careful with links in it.
Report malicious forms to
[[email protected]](mailto:[email protected]).

## Has this been tested?

- [ ] 👍 yes, I added tests to the test suite
- [ ] 💭 no, because this PR is a draft and still needs work
- [x] 🙅 no, because this is not relevant here
- [ ] 🙋 no, because I need help <!-- Detail how we can help you -->

---------

Co-authored-by: nbush <[email protected]>

Author: fflorent

app/client/ui/GristTooltips.ts

@@ -250,9 +250,9 @@ Only .tar attachment archives downloaded from Grist can be uploaded here."
   formFraming: (...args: DomElementArg[]) => cssTooltipContent(
     cssMarkdownSpan(
       t(
-"This form is created by a Grist user, and is not endorsed by Grist Labs. \
-Do not submit passwords through this form, and be careful with links in \
-it. Report malicious forms to [{{mail}}](mailto:{{mail}}).", {
+"This form is created by a Grist user, and is not endorsed by Grist Labs, Inc. \
+or any party providing this service. For your security, do not submit passwords through this form, \
+and be careful when clicking embedded links. Report malicious forms to [{{mail}}](mailto:{{mail}}).", {
         mail: getGristConfig().supportEmail
       }
     )),

static/locales/en.client.json

@@ -1356,7 +1356,7 @@
         "Internal storage means all attachments are stored in the document SQLite file, while external storage indicates all attachments are stored in the same external storage.": "Internal storage means all attachments are stored in the document SQLite file, while external storage indicates all attachments are stored in the same external storage.",
         "This allows you to add attachments that are missing from external storage, e.g. in an imported document. Only .tar attachment archives downloaded from Grist can be uploaded here.": "This allows you to add attachments that are missing from external storage, e.g. in an imported document. Only .tar attachment archives downloaded from Grist can be uploaded here.",
         "Understand, modify and work with your data and formulas with the help of Grist's new AI Assistant!": "Understand, modify and work with your data and formulas with the help of Grist's new AI Assistant!",
-        "This form is created by a Grist user, and is not endorsed by Grist Labs. Do not submit passwords through this form, and be careful with links in it. Report malicious forms to [{{mail}}](mailto:{{mail}}).": "This form is created by a Grist user, and is not endorsed by Grist Labs. Do not submit passwords through this form, and be careful with links in it. Report malicious forms to [{{mail}}](mailto:{{mail}}).",
+        "This form is created by a Grist user, and is not endorsed by Grist Labs, Inc. or any party providing this service. For your security, do not submit passwords through this form, and be careful when clicking embedded links. Report malicious forms to [{{mail}}](mailto:{{mail}}).": "This form is created by a Grist user, and is not endorsed by Grist Labs, Inc. or any party providing this service. For your security, do not submit passwords through this form, and be careful when clicking embedded links. Report malicious forms to [{{mail}}](mailto:{{mail}}).",
         "Set the maximum number of lines for multi-line text.": "Set the maximum number of lines for multi-line text.",
         "Comments are here!": "Comments are here!",
         "You can add comments to cells, reply to comment threads, and @-mention collaborators.": "You can add comments to cells, reply to comment threads, and @-mention collaborators."